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Details for Benchmark: RD3152

N 45° 31.170 W 122° 44.631 (NAD 83)

Altitude: 954

Coordinates may not be exact. Altitude is VERTCON and location is ADJUSTED. (more info)

Location:
In MULTNOMAH county, OR View Original Datasheet
Designation:
MONUMENT
Marker Type:
stone monument
Setting:
setting not listed - see description
Stability:

Reference Points

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Still there....and going strong!

[Photos:]
photoBM

I discovered this essential benchmark in the “Willamette Stone State Park“ in Portland. It was very interesting to read the story behind.
The benchmark is at the intersection of the Willamette Base Line and the Willamette Meridian.

[Photos:]
photo
Willamette Stone
photo
log proof benchmark

Found it on a geocaching trip to, uh, a cache about this benchmark.

[Photos:]
photoThe benchmark

I was in town visiting family and also seeking this benchmark (although not the original) in another listing service: Terracaching.com (TCHAU).

The current benchmark is in fair condition, See picture.

[Photos:]
photoGPSr with benchmark.

Found this one while going after X Marks the Spot.

I had no idea this was here, we found it interesting.

ThunderEggs took me to this spot because she wanted to show me the historical marker and because there is a geocache nearby. Despite quite a long search we did not find the cache. However, seeing the marker, I though I'd check if that was a benchmark that could be found, and it turns out it is. Which means that I can log this cool place as my very first Benchmark find!

[Photos:]
photoHistoric marker
photoSurveying marker

Observed while traveling to/from and attending a Military Reunion.
Old Professor - Tipton, Mo.

What a wonderful piece of history and monument to this key benchmark. So glad I made the trek on this wet and blustering morning.

I just learned about Benchmarks, even though I have been geo-caching for five years. I have been to this spot many times, because I am interested in local history. I found the cache on 5/17/16, and would like to log the benchmark for the same date.

As I love finding benchmarks, this is like the ULTIMATE one to get as an Oregonian. Glad 3MudDogs made it a priority for us to get here today. One of my favorites, and happy to finally have visited this site!

[Photos:]
photo3MudDogs & glorieme @ RD3152: Willamette Stone
photoRD3152: Willamette Stone Monument

what a wonderful piece of oregon history. let's hope it remains in place for years to come. bad bad vandals!!

<b>THERE IS MAJOR CONFUSION ON THIS SURVEY MARK BUT I FOUND THE TRUTH!</b>
<p>
I was able to locate a website managed by the Center For Land Use Interpretation <a href="http://www.clui.org/section/willamette-meridian" target="_blank">( link )</a> which highlights the history of this site and goes into great detail regarding the unfortunate series of events that have affected the Willamette Stone over the years. Suffice it to say that this stone STILL EXISTS and is the square piece from which the circular metal disk is monumented on! Not only has the Willamette Stone been vandalized numerous times over the years, the brass commemorative plaque next to it has been STOLEN twice! Let's hope these historic monuments stay safe for many more years...
<p>
If you're interested in reading more about the Willamette Stone and want to see a historic picture of it, please visit my Waymarking page <a href="http://www.waymarking.com/waymarks/WMQ5Z2" target="_blank">here</a>.

http://www.waymarking.com/waymarks/WMQ5Z2

[Photos:]
photo1218151308a
photo1218151308
My stepson trying to imitate some kind of pose...

Description lists as a stone monument. Nearby signage indicates that monument was vandalized in the '80's and replaced with a stainless steel mark set in bronze which is what I found

Out with the other penguins today. Pictures are in Papa-Penguin's log. Benchmark found in good shape. Thank you to the park system for the informative signs about the history.

I really enjoyed learning the history behind this one! I think surveying would be fun job. All pictures are in Papa-Penguin's log.

This was a very impressive history lesson for all of us today. Thank you to all those involved with making this a state park heritage site to help preserve it for future generations. The benchmark is still in good shape and located easily.

[Photos:]
photoRD3152 up close
photoThe area around it.

Found the nearby geocache; very interesting location!

Found while out geocaching with a little history lesson on the side.

Never been here before. Cool history

[Photos:]
photoimage

A cool piece of history in a park that we had no idea even existed. Logging this benchmark as we log the nearby geocache.

First time back to here since becoming a geocacher/benchmarker. I was on my way home from other hunting and it was along my way.

[Photos:]
photoWillamette Meridian

Willamette Stone Historic Site. Great monument at this historic site...the mother of all benchmarks in the Pacific Northwest. Brought my son here, who likes the adventure but not geocaching. Visited the nearby cache as well.

This entry was edited by SpockProf on Monday, 14 October 2013 at 02:54:32 UTC.

[Photos:]
photoWillamette Stone Heritage Site
Site of the marker
photoWillamette Meridian Monument
The monument at the Willamette Stone site
photoWillamette Stone Plaque
photoWillamette Stone Benchmark (RD3152)

Found while grabbing the nearby geocache. Very neat.

Found this while caching with my dad, EarthNinja and NoPityCacher. Fun place for kids to learn more about monuments and an important part of Oregon history...

Found this while caching with EarthNinja and NoPityCacher. Just realized now that it can be logged!

Found my first benchmark with my dad and neighbors!!

My first benchmark! Glad to learn about this new angle on geocaching.

Found with mother who is visiting from Louisiana

This was a very cool history lesson. Glad I got to find it, and log my first listable BenchMark!

[Photos:]
photoThe Willamette Stone
Benchmark located at the Willamette Stone. This is the grandaddy of all surveying done in Oregon and Washington, from 1851 to present day.

My father , buck snort, and I walked down the paved path to find http://coord.info/GC6E77 X marks the spot - Oregon Survey History #1 and discovered this benchmark.
Thanks

[Photos:]
photoCell phone snap shot pic of RD3152 benchmark

This was a really nice location and the marker has had a lot of attention to make sure it lasts. Thanks for the history.

[Photos:]
photoMonument

I love what they have done with this historic monument.

I accidently took a video of the benchmark when I found it earlier this month and I finally figured out how to get a screen capture to document the find.

[Photos:]
photowillamette stone

grabbed photos of this while i grabbed the cache!

When finding the cache near by I had to walk right by this. Seeing this is why I gave the near by cache a favorite point.

My 2nd benchmark. Found this one while out searching for the x marks the spot cache!

Just started logging benchmarks recently, so I appreciated finding this one while going for the X cache nearby. What a neat little park! And I had it all to myself this afternoon in the cold, fog, and sleet!

[Photos:]
photoRD3152 Willamette Meridian

Came up to visit this benchmark because we were excited at the prospect of grabbing a Geocache, a Benchmark, and a Waymark all at one go... had no idea this spot would be so cool! Best benchmark ever!!!

[Photos:]
photoNight Benchmarking
A Benchmark is so much easier to find when they're so well marked...

Historic

found Willamette Stone--awesome location!

[Photos:]
photoWillamette Stone
Benchmark
N 45° 31.171 W 122° 44.632

This is the coolest benchmark I have ever found!

[Photos:]
photoWillamette Stone
Willamette Stone
photoWillamette Meridian

The Willamette Stone is THE benchmark, so sprite4, Trekks, and I had to make note of it. Very historic park.

I was with sprite4 and rtmyss finding this and the nearby cache. Very cool to see this history.

FOUND THIS ONE WHILE OUT HUNTING FOR WATERDOG42'S 500 TH FIND.

FOUND THIS ONE WHILE OUT HUNTING FOR WATERDOG42'S 500 TH FIND.

I found the focal point; the catalytic nexxus of westward expansion into the Oregon Territory...

[Photos:]
photoNo Stone Unturned.

A nice piece of history.

[Photos:]
photoWillamette Stone

Great day to find this benchmark while out geocaching

Came here to find a cache and this awesome place. Really cool to learn these things.

Found it while geocaching on a nice cool September day.

Found the replacement benchmark, not the stone monument.

[Photos:]
photoCIMG0190

I am quite certain I visited this little park at least once in the late'60s/early '70s when I lived in Beaverton with my family, and I know the stone was still standing at that time. Rather than dredge up old family photos and post a back-log find on the true monument, I think it's best to post a current log describing the current situation.

As others have repeatedly stated, the original stone monument is destroyed/missing.
The local surveyor's society have done a splendid job of placing something at the location for us to see and enjoy.

[Photos:]
photoMONUMENT / RD3152
A close-up of the replacement mark, with the GPSr.
photoMONUMENT / RD3152
A close-up of the replacement mark alone.
photoMONUMENT / RD3152
A wide view of the general area, looking north.
photoMONUMENT / RD3152
The descriptive plaque nearby.

Oh my, the granddaddy of 'em all! The scent of History permeates the air here.

I found this benchmark.

X- marks the spot! Great benchmark!

Found this awile back during an event.

cheers

Nice Setting for this benchmark. Very cool history. Enjoyed finding both the disk and the cache nearby.

[Photos:]
photoWillamette Stone Bench Mark

Found this today while grabbing the nearby cache, cool place...

In conjunction with caches.

Our first Bench Mark and a very important one to boot!!

Divabetic and Dropshot24!

First benchmark find, and a pretty significant one at that! Found while doing a nearby cache and introducing some friends to geocaching.

Found it while finding the cache nearby to complete the requirements for the ABC Challenge.

An iconic part of my childhood. I well remember the old stone marker. Sad that it is gone.

[Photos:]
photothe marker and the benchmark
photoRD3152 benchmark

The greatest benchmark I have found to date.

Also logged the GC.

As noted in description for nearby geocache (GC6E77), the original stone has been replaced with a stainless steel marker. Very cool to be in this historic spot!

this was my first benchmark to find while attending the willamete stone coin challege with yukonkate49 & tjwags

Found while attending the Professional Land Surveyors of Oregon (PLSO)/ Geocaching's Willamette Stone - Oregon 150 Event with a whole bunch of other Geocachers. Thanks for the fun and info. See Geocache "GC1RD0A" for Photos of the Event and attendees. ORNITH

Out w/TJWags and JellyBeanZ - great day and my first benchmark!

Found this during the 150 year celebration. What a great event.

[Photos:]
photoWillamette Meridian Benchmark

Found this benchmark while attending the Willamette Stone - Oregon 150 event cache. We went with Yukonkate49 and Jelly Bean Z. Met other geocachers, surveyors and scouts. Very nice day for an event.

View the monument today. Thanks

If we're going to get one benchmark in the NW, this is it!

What a historically interesting place for an old Forester with an ancient surveying background. I always knew of the initial points existence, but never knew the darn thing was so easy to get to & visit. Not quite like the hallowed grounds of the battlefields at Gettysburg, but a close second! My poor planning kept this from being my first benchmark since starting to geocache, so the W.M. I.P. goes into my log as #2.
THANX. 0930 Hrs. OR&WA4STR

My first bench mark, kinda cool. Stood right on top of it, and used it to store a reference waypoint on my GPS. Never realized that there was so much history so close.

[Photos:]
photoWillamette Stone Portland Oregon
photoWillamette Stone Portland Oregon
photoWillamette Stone Portland Oregon
photoWillamette Stone sign

Always wanted to come and see this place. So, I snook off one day and took a stroll down to see it.

Found this one where X marks the spot. Love it!

This is such a neat place. Amazing to think that's how they measured everything in the whole valley!

[Photos:]
photowillamette stone 1
photoWillamette Stone 2

Found today while down in Oregon for a short visit. Nice to see that someone has replaced the BM.

[Photos:]
photoBoys at the Willamette Stone

It's still there, and so is the nearby cache. :)

Found it...

I was pleased to visit this stone. It has special History. All was in great shape.

Finally was able to get up the hill today for the find with a geocoin that needs to visit benchmarks. Nice park and found the nearby geocache.

[Photos:]
photoBenchmark in Multnomah county, OR

Found the new replacement benchmark while geocaching with gonzagajen. Certainly a must-do for anyone in the geo-studies!

[Photos:]
photoThe current banchmark

Found this while geocaching. Very interesting lesson on geography! Cool place to visit.

found this a while ago

Have wanted to stop here for some time. Finally made it after a visit to the zoo.

[Photos:]
photoThe Mark
photoWillamette Meridian
photoMr. Bean & The Bean Himself at the Monument

This station is a "must-have" for those interested in the history of the family of surveyor's marks. Happy to get this one. Photo retained in personal collection.

Found it when heading for the nearby cache. Cool monument.

Found on my birthday.

A very interesting marker!

Great history lesson for children.

Below is the date found, we actually logged it on 3/14/07 cause we were not hip about the benchmark thing

our first benchmark yaaaa! and one of the most inportant in the area to boot happy hunting

We found this Benchmark looking for a cache did no realise that we could record this as a Benchmark find. well now we do. Shelrik & The Boy....

PARK WAS KINDA HARD TO FIND, NOT LISTED ON MANY MAPS. GREAT POINT OF INTEREST. PARK WAS SMALLER THAN EXPECTED. GREAT HISTORY FIND..

[Photos:]
photoIMG_0650.JPG

Very interesting place.

This station is in a lovely park called "Willamette Stone State Park". If you drive west on Burnside and keep driving after it becomes Skyline Boulevard, look for the sign and a small parking lot on the left as you reach the top of the ridge. There is a short paved path down the hill about 200 yards to the monument.

The station was originally established in 1851 and marked the initial point for land surveying in Washington and Oregon. The "Willamette Base Line" goes due west to the Pacific Ocian and due east to the Idaho state line. In Portland it follows Stark east out of the city and then follows Base Line Road as you get further out. The Perpendicular "Willamette Meridian" goes due north to the Canadian border, and due south to the California state line.

Unfortunately, in the 1980s the stone was vandalized and there is no record in the NGS datasheet that the horizontal control was preserved when the present disk and concrete base was put in to replace the stone. There is block of granite that the disk is mounted on, but there is no record that this is a remnant of the original stone (which was 8 inches square).

So as a benchmark (horizontal control station) it is destroyed, but as a place to visit, it is just wonderful. If you are in Portland, this is a must (besides visiting the nearby caches).

[This entry was edited by Papa-Bear-NYC on Wednesday, November 01, 2006 at 5:51:28 PM.]

[Photos:]
photoRD3152 "MONUMENT", Portland Oregon
Explanatory sign at entrance to park.
photoRD3152 "MONUMENT", Portland Oregon
A short path down the hill leads to the station.
photoRD3152 "MONUMENT", Portland Oregon
A bronze plaque mounted next to the disk.
photoRD3152 "MONUMENT", Portland Oregon
The Willamette Meridian heading north to Canada.
photoRD3152 "MONUMENT", Portland Oregon
The Willamette Base Line heads east to Idaho.
photoRD3152 "MONUMENT", Portland Oregon
Plaque and disk.
photoRD3152 "MONUMENT", Portland Oregon
photoRD3152 "MONUMENT" vintage photo (1954), Portland O
Vintage photo (1954) of the original Willamette Stone.

Nice place to have lunch.....

Great bit of history. I had no idea this was here....Thank you so much for bringing us to it!!

Found this out caching. Enjoyed the info for a site I've passed many times.

What a great bit of history.

delighted to find, on the way to X Marks the Spot Again II

FOUND WITH CHARLIE AND THE KIDS.
ON OUR 6000 MILES TRIP ACROSS THE USA.
TIGGR

We were along with grandpa GEO*TRAILBLAZER 1 and TIGGR our grandma when we recovered the mark.

We were lucky enough to be with our Grandpa,GEO*TRAILBLAZER 1 and our Grandma TIGGR when they recovered this mark.

THE LAST INITIAL POINT ON OUR 6000 MILE TREK ACROSS THE USA.
WE HAVE NOW DONE ALL OF THE WEST 1/2 OF THE UNITED STATES INITIAL POINTS.

THE GIRLS REALLY LIKED THIS ONE.
WE HAD A BLAST FINDING THE CACHE TOO.

[Photos:]
photoRD3152 GIRLS
THE GIRLS OF ARK-MO GEOCACHERS.
photoRD3152 DISC
THE DISC IN CENTER
photoRD3152 PLAQUE
PLAQUE SET AT SITE

Found this one when doing a cache nearby.

Found this one while looking for the nearby cache.

Interesting history.

Great spot, loved the significance of it being the first benchmark we spotted. We found it along with the nearby geocache.

Found it while geocaching. Didn't bother with a photo since there are so many other logs.

Loved finding this piece of land surveying history. I tried to picture this location with fewer trees and, hopefully, a place with better line-of-sight views for the surveyors.

Found while on the way to a nearby geocache.

Great piece of Oregon history!

Sweet benchmark, easy to find. Also gives you a close up view of the nearby radio/tv antennas.

N 45° 31.149 W 122° 44.627

@ 801 feet.

Girlfriend, a soon to be geocacher as soon as I give her my Garmin GPS, told me about this benchmark on the drive up from Reno for the Great American Pig Out Day, i.e., Thanksgiving. Took us a while to find it as we didn't have coordinates but happen to drive by a state park on a ridge line and found it.

Interesting place for the bench bench mark. Wonder why this exact location versus up higher on the ridge, etc.

A light rain was falling (no surprise there) so location shots did not work. Did notice some surveying tape off in the SE direction, maybe 15-20 yards, and think I saw a rod in the ground but did not document.

Unfortunately the very near by cache didn't show up on my searches (only easy caches as I was road tripping and didn't have that much time). Will be back though.

~twm3, The Closet Geologist, and two dogs

[Photos:]
photoOn Station

BEAUTIFUL!! This is cool. love the fact this marker, so prevelent to all the surveying in OR and WA is just up the hill from my home. Never considered the significance until I got interested in caching. bonus there was a cache nearby.

My mother, Rose Red, and I found this benchmark while geocaching.

My daughter, Crazy Cat, and I found this benchmark while doing a geocache. Amazing place!

[Photos:]
photoWillamette Stone Benchmark
photoWillamette Stone Benchmark & Plaque

Found it while looking for a nearby cache.

Found this one with the boys while out caching tonight. Learned way more than I ever thought I'd know about surveying.

found with another cacher while searching for the nearby cache,what a great way to experiance this,caching has again brought me to another place i would have never of gone to otherwise!!!!

Found this while sniffing out a nearby cache.

Was visiting friends nearby, and just had to visit the Willamette Stone site. Though I knew that the Stone had been vandalized, my friends did not, and were quite saddened to see that it was gone.

I agree with CallawayMT, that a nice job has been done by the local survey society with the plaque and the 1988 Initial Point disk.

[Photos:]
photoWillamette Meridian Initial Point Disk
photoWillamette Stone Plaque
photoNorth at the Willamette Stone/Initial Point Site
photoWest at the Willamette Stone/Initial Point Site

Found this one looking for a cache, neet spot.

[Photos:]
photoWilamette stone benchmark..jpg

Found it today while out geocaching!

My first benchmark. Found it by looking for the nearby cache.

I thought that since this was my first day geocaching with my new GPSmap 60C that it was only fitting to find this particular benchmark today. Took a bunch of pictures.

Thanks to the previous finders for the info on the previous benchmark. I had been expecting the one I saw in the 1980's, and was confused when I found a flat marker. When I logged the benchmark I found out why.

Easy find when you're looking for the nearby geocache.

Rainy day for geocaching, but at least the trail was paved! Stopped at the Willamette Stone, and also found the cache hidden nearby.

Rainy Rainy Rainy! My first initial point with the Mojave Mule. Cool park, great setting and wonderful history. ~fridgecat

Too bad original was destroyed, just shows deadbeats careless about the past as much as the future. Reset in good condition

-

Went to Portland for the Jeld-Wen Champions Tour Golf tournament, but had to take the time to come see the Willamette Stone. Did not take a data sheet and drove right past the parking area the first time.

Walked down the trail in some morning fog and found the 1988 Stainless monument drilled into the remnants of the original stone. A very nicely presented area with a large brass placque and informational exhibits up at the road parking area.

Well worth the stop to see such an important survey monument for the states of Oregon and Washington. Just a small glimpse of the terrain and vegetative conditions those surveyors went through over 100 years ago.

[This entry was edited by CallawayMT on Tuesday, August 31, 2004 at 7:12:17 PM.]

[Photos:]
photoWillamette Stone Stainless Monument - Portland, OR
1988 corner perpetuation
photoWillamette Stone Monument - Portland, OR
Approaching from the parking area.
photoWillamette Stone Monument - Portland, OR
Brass placque in concrete surrounding the monument.
photoWillamette Stone Monument - Portland, OR
Looking up the trail.
photoWillamette Stone Park - Portland, OR
photoWillamette Stone Park - Portland, OR

We are down in Portland for the weekend and my Dad told us that he was going to take us to a benchmark. What fun it was to find this one. The most important benchmark we've found to date! The first benchmark for my parents too!

Hard to believe we had these capabilities in this time era. Must have been quite the challenge!

[Photos:]
photoBenchmarks 007.jpg

Per the sign at the site the original 'Willamette Stone' was vandalized in the 1980s and in it's place was put this stainless steel cap and bronze landmark

[Photos:]
photoRD3152_20040627_Destroyed
Bottom Left of Sign telling that the original benchmark has been gone since 1980s
photoRD3152_20040627_A
Steel Cap
photoRD3152_20040627_Sign
Full Sign

Very cool indeed! Found while caching. Unfortunately the original was destroyed.

[This entry was edited by TeamIt'sAllGood! (TIAG!) on Friday, July 09, 2004 at 2:53:54 AM.]

N 45° 31.173 W 122° 44.629

The described benchmark was apparently vandalized in the 1980s and replaced with a marker by the Parks Dept. What a significant historical location! Reception was marginal under the trees, so my coordinates are not of especially high accuracy.

[This entry was edited by Moun10Bike on Thursday, July 08, 2004 at 1:26:23 PM.]

[Photos:]
photoA closeup of the benchmark disk
photoThe benchmark with my GPSr
photoWillamette Stone plaque
photoWillamette Stone sign

Couldn't help but find this one while searching for a nearby cache on the Portland Cache Machine.

[Photos:]
photoWillamette Meridian Benchmark with GPSr

This is the center of all the areas we have searched so far and was really impressive to see. While on the Portland cache machine search we found this one.

Found this while looking for the nearby cache. Very cool spot. I knew the spot was somewhere near Portland but had no idea where. Now I know!

[Photos:]
photoThe stone
Benchmark with YeOleImposters shadow and someone's shoes.

This was a cool location. I liked the information located at this site.

My first benchmark.

Came down from Gig Harbor, WA to see this benchmark as part of a research paper I'm writing on it. Also grabbed the X Marks the Spot geocache while I was there.

Found this one today while doing the " X Marks the spot Again 11.

1/22/04 Didn't log this when I found the cache. Wasn't up on logging benchmarks. Now I am.

WOW!!! What a great benchmark. So significant that it has its own park named after it. This is one of the greatest benchmarks of the west. Please come see it. Very nice dedication around it. Quite a monument. Don't forget to see the cache nearby.

-Jon

[Photos:]
photoWillamette Stone1
photoWillamette stone2
photoWillamette stone3

Found this along with the Geocache

Was the geocache hear and learned some great history as well.

It's curious how many other reasons bring one to this benchmark. One could get the world's largest splitting headache just figuring out clues from other caches that end up in this area. So, I decided to log the benchmark while I also logged a cache. (Should I have encrypted this?)

[Photos:]
photoThe benchmark
photoThe Willamette Stone
photoBenchmark with GPS

Found the disk one while looking for the area cache but apparently the original is no longer there.

[This entry was edited by Danman on Wednesday, August 04, 2004 at 2:37:45 PM.]

N 45° 31.174 W 122° 44.634

Decided to make the corner stone of the whole area my first benchmark found. One of many I have been to before.
Wampus & Son

New to this game, so we thought we would start at the beginning (plus this is close to Grandma's house). Been curious to visit the stone for a number of years anyways. Logged in the cache nearby as well.

A benchmark with history, I like!

[Photos:]
photoWillamette Stone

Hey, this one was easy. It was the coordinates for a cache located nearby. Thought I might as well get credit for the benchmark too!

MedicOne

Log this one while picking up a nearby cache... This is my first disk, so I thought should start at the beginning

[last edit: 11/21/2002 6:16:00 PM PST]

[Photos:]
photoWillamette Stone

Found while geocaching. I always knew oregon revolves around Portland. This benchmark is proof.

Found during the hunt of my 50th geocache!

[Photos:]
photoMeridian Benchmark
The root cause+

Wow...the center of the universe for us Northwesterners

N 45° 31.172 W 122° 44.630

I failed to find the X Marks the Spot Again Cache today, but at least I got to pick up this nifty benchmark! It was interesting to read about, and it's my first benchmark log.

Visited this benchmark while searching for the x marks the spot again cache, so I figured we'd better log it as find. Can't believe how much of my professional life is centered around this particular point!

[Photos:]
photoWillamette Meridian Benchmark
THE starting point for all land surveys in Oregon!
photoWillamette Stone

Found this thanks to the nearby geocache. It is one of the most interesting places I've discovered while geocaching.

Found while working the 'X Marks The Spot Again' Geocache.

With Grouchy Gramma found this on the hunt X Marks the Spot. Interesting history for this one.

Possibly the most important benchmark in our area!
I think Maps-R-Us should be the first to log this one as a find

-fractal

[last edit: 5/15/2002 12:17:31 PM PST]

Found this about a year ago as part of the great Carto Cache -Oregon History Lesson #5 by the Maps-R-Us Team. A wonderful introduction to the historical aspects of bench marking. This is a truly moving experience to stand at the intersection of the base line and ist meridian for all of Washington and Oregon. Thanks to the team for an inspiration. . . . patrick & shirley

[Photos:]
photoRD3152 Willamette Stone
The 1851 initial point for all of Oregon and Washington. Magnificent!

Documented History (by the NGS)

01/01/1903 by USGLO (MONUMENTED)
DESCRIBED BY US GOVERNMENT LAND OFFICE 1903 (OBF) EXACTLY ON THE COUNTY LINE, AT THE INITIAL INTERSECTION OF THE WILLAMETTE BASE AND THE WILLAMETTE MERIDIAN, A SHORT DISTANCE SE OF STATION BARNES. THE STATION IS IN A FENCE CORNER AND IS MARKED BY A STONE POST PROJECTING 1-1/2 FEET ABOVE GROUND.
01/01/1937 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1937 (LAM) IN EXTREME W PART OF PORTLAND, ON MULTNOMAH-WASHINGTON COUNTY LINE, AT INTERSECTION OF WILLAMETTE BASE LINE AND WILLAMETTE MERIDIAN. TO REACH FROM PORTLAND, PROCEED W ON WEST BURNSIDE STREET AND ITS CONTINUATION OF BARNES ROAD, TO INTERSECTION WITH NORTHWEST SKYLINE BOULEVARD, THENCE NW ALONG BOULEVARD ABOUT 0.85 MILE TO W END OF SHORT TANGENT AND E END OF GUARD FENCE ON S SIDE OF CURVE. FROM THIS POINT WALK S ALONG FENCE AT W EDGE OF TIMBER AND ON E EDGE OF FIELD WITH OLD FRUIT TREES, FOR ABOUT 650 FEET TO INTERSECTION WITH E-W FENCE. THIS IS DOWN SLOPE FROM BOULEVARD. STATION IS AT FENCE INTERSECTION AND IS MARKED BY BRASS SCREW SET IN CENTER OF TOP OF CUT STONE POST ESTABLISHED BY U.S. GENERAL LAND OFFICE AND KNOWN AS WILLAMETTE STONE.
01/01/1952 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1952 (ANS) THE STATION WAS RECOVERED AND THE MARK WAS FOUND TO BE IN FAIR CONDITION. THE LOCATION OF THE STATION IS NOW A SMALL PARK, THE WILLAMETTE STONE STATE PARK. IN THE PAST THE MARK WAS BROKEN OFF AT THE TOP BY VANDALS, BUT ALL THE PIECES WERE RECOVERED AND HAVE BEEN CEMENTED IN PLACE. THE STATION IS ON THE W SIDE OF PORTLAND, 0.35 MILE W OF THE INTERSECTION OF BURNSIDE ROAD AND SKYLINE BOULEVARD, AND 650 FEET S OF SKYLINE BOULEVARD. IT IS ON THE MULTNOMAH-WASHINGTON COUNTY LINE AND AT THE INTERSECTION OF THE WILLAMETTE BASE LINE AND THE WILLAMETTE MERIDIAN. THE STATION MARK IS AN 8-INCH SQUARE STONE POST, BEVELED AT THE TOP, PROJECTING 16 INCHES ABOVE THE GROUND. BASE LINE IS ENGRAVED ON THE E AND W SIDES AND WIL MER ON THE N AND S SIDES. A SMALL HOLE WHERE THE BRASS SCREW HAD BEEN SET IS IN THE APEX OF THE STONE. TO REACH THE STATION FROM THE INTERSECTION OF BURNSIDE ROAD AND SKYLINE BOULEVARD, PROCEED W ON SKYLINE BOULEVARD FOR 0.4 MILE TO A SIGN ON THE LEFT COMMEMORATING THE STONE. THENCE PROCEED ON THE TRAIL S DOWN THE SLOPE FOR 200 METERS TO THE SMALL PARK AND THE STATION.
01/01/1959 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1959 (ANS) STATION WAS RECOVERED AS DESCRIBED. THE STATION MARK IS IN FAIR CONDITION. THIS STATION IS LOCATED ON THE SOUTH SLOPE OF A HILL AND WILL ONLY SEE OUT TO THE SOUTHWEST.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in October 1991.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.) The vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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