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Details for Benchmark: CZ1827

N 32° 14.771 W 110° 50.248 (NAD 83)

Altitude: 2546

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
MAGNETIC RM 2
Marker Type:
reference mark disk
Setting:
set into the top of a round concrete monument
Stability:

Reference Points

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Found rock that the benchmark was on at some time but plate is missing and should be marked as destroyed.

Not a find - is destroyed.

[Photos:]
photoP5300034

Not much left at all...fading away.

[Photos:]
photocz1827

I think this is it, correct location anyway. The Illegals came to the same spot. What a sad end.

[This entry was edited by mcamaz on Friday, August 03, 2007 at 8:51:28 PM.]

[Photos:]
photo08/03/2007
Not much left here!

My buddy and I went looking for this benchmark and I think we found what is left of it...

[Photos:]
photoSTP60603.JPG
N 32° 14.772 W 110° 50.249

Gps accuracy of 8 feet.

This one was broken with not much more than a worn-down base remaining.

[This entry was edited by Lehigh_Cachers on Sunday, June 11, 2006 at 1:00:31 PM.]

[Photos:]
photoCloseup of gps
photoBenchmarker

This one was destroyed by a stupid guy. See picture!

[Photos:]
photoCZ1827 destroyed

Found with my daughter on way back from a cache.

Found this on the way to a cache.

N 32° 14.772 W 110° 50.247

We came across these while doing a Geocache.. GPS was spot on with one set of numbers and a little drifted with others.

[Photos:]
photoRM#2

Found this one and Referance marker #1. RM #1 is referenced in the Datasheet for CZ1826 with the PID of CC6887. Yet when I try to get a data sheet for CC6887, nothing comes up.

[last edit: 12/14/2003 12:04:22 AM PST]

[Photos:]
photoRM #2
photoRM #1

Ran into this BM on the way back from a MO&GO cache. Glad I decided to log it--otherwise would have missed Benmont's description.

Found vthis while doing a cache in the area

Found this one and several others while returning from a cache hunt in the local area.

Found this one. This used to be a USGS scientific outpost. When I was a kid we took field trips to see the seismograph. As the city encroached upon (and eventually around it) the post was abandoned. I remember hearing about how the seismo was picking up too much city noise, like heavy trucks, etc. The seismograph was moved almost directly north of this location, in the Catalina foothills inside the Forest Service boundry, where there is presumably a lot less human interference. Never knew the old buildings were still standing...

[last edit: 6/21/2003 11:06:39 AM PST]

[Photos:]
photoTucson Mag. 2

Found at 9:20 a.m. as described and in good condition.

MO & GO, Tucson, Arizona

[Photos:]
photoRM2 w/GPSr
photoView of the area
Picture shows CZ1827, CZ1829 and Magnetic RM1 which is not listed in the database.
photoRM1 w/GPSr

Documented History (by the NGS)

01/01/1971 by NGS (MONUMENTED)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1971 (WMJ) THE STATION IS LOCATED ABOUT 8 MILES EAST OF THE CENTER OF THE CITY OF TUCSON ON THE GROUNDS OF THE U. S. DEPARTMENT OF COMMERCE, NATIONAL OCEAN SURVEY, SEISMOLOGY AND GEOMAGNETIC CENTER. TO REACH THE STATION FROM THE INTERSECTION OF EAST BROADWAY AND WILMOT ROAD IN TUCSON GO NORTH ON WILMOT ROAD FOR 1.6 MILES TO THE JUNCTION OF TANQUE VERDE ROAD. BEAR RIGHT AND GO EAST ON TANQUE VERDE ROAD FOR 1.4 MILES TO THE ENTRANCE TO THE U. S. DEPARTMENT OF COMMERCE, NATIONAL OCEAN SURVEY, SEISMOLOGY AND GEOMAGNETIC CENTER ON THE RIGHT. TURN RIGHT AND GO SOUTH ON THE SURFACED ROAD FOR 0.3 MILE TO THE OBSERVATORY BUILDINGS AND A SIDE ROAD RIGHT. TURN RIGHT AND GO WEST ON THE GRAVELED ROAD FOR ABOUT 300 FEET TO A WIRE FENCE. TURN LEFT AND GO SOUTH ALONG THE EAST SIDE OF THE FENCE FOR 0.05 MILE TO THE STATION ON THE LEFT. THE MARK IS A STANDARD REFERENCE MARK DISK STAMPED MAGNETIC NO 2 1935, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT THAT PROJECTS 6 INCHES ABOVE THE GROUND SURFACE. IT IS 98 FEET EAST-NORTHEAST OF A TELEPHONE POLE AND 95.5 FEET EAST OF A WIRE FENCE. THE MARK IS A STANDARD STATION MARK DISK STAMPED MAGNETIC 1935, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT THAT PROJECTS 6 INCHES ABOVE THE GROUND SURFACE. IT IS 11 FEET EAST-SOUTHEAST OF A TELEPHONE POLE AND 8 FEET EAST OF A WIRE FENCE. REFERENCE MARK 1 IS A STANDARD DISK STAMPED MAGNETIC NO 1 1935, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT THAT PROJECTS 6 INCHES ABOVE THE GROUND SURFACE. IT IS 74 FEET NORTH-NORTHEAST OF A TELEPHONE POLE AND 8.5 FEET EAST OF A WIRE FENCE. THE MARK IS AN AIR FORCE DISK STAMPED TUCSON CAMERA 1964, SET IN THE CENTER OF A TRIANGULAR SHAPED CONCRETE MONUMENT THAT IS 6 FEET IN LENGTH ON EACH SIDE. IT IS 59 FEET NORTHEAST OF A TELEPHONE POLE 53.7 FEET EAST OF A WIRE FENCE. THE AZIMUTH MARK IS A STANDARD REFERENCE MARK DISK STAMPED MAGNETIC AZIMUTH NO 3 1935, SET IN THE TOP OF A 12-INCH SQUARE CONCRETE MONUMENT THAT PROJECTS 8 INCHES ABOVE THE GROUND SURFACE. IT IS 61.5 FEET NORTHWEST OF THE NORTHWEST CORNER OF A SMALL CONCRETE BUILDING AND 19 FEET EAST OF A FOOT PATH. THE TRAVERSE DISTANCE ABOVE ARE REDUCED TO SEA LEVEL.

Control Text

  • The horizontal coordinates were established by classical geodetic methods and adjusted by the National Geodetic Survey in August 1993.
  • The NAVD 88 height was computed by applying the VERTCON shift value to the NGVD 29 height (displayed under SUPERSEDED SURVEY CONTROL.)
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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