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Details for Benchmark: CZ2410

N 32° 14.774 W 110° 50.102 (NAD 83)

Altitude: 2549

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

Location:
In PIMA county, AZ View Original Datasheet
Designation:
MAGNETIC AZ MK 3
Marker Type:
azimuth mark disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

Must Read!

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Quick find on a nice day.

[Photos:]
photoBenchmark
photoScenery

Found in great condition.

The USGS Magnetic Observatory - Tucson moved from Morris Udall Park in 1996 to a location in the Saguaro National Park....see pictures of the new observatory:
http://geomag.usgs.gov/observatories/tucson/
but I logged this BM anyway....none of the finders have mentioned finding the original triangulation station (do you suppose it was destroyed when the USGS moved the observatory to Saguaro National Park?)

[Photos:]
photoA closeup of the Mark
photoThe mark's vicinity looking West

Found in good condidtion

Found this one after finding Tucson Camera and the remains of other destroyed benchmarks in the same area. Blackberry is dead from looking up to many caches and benchmarks so I couldn't take a picture but there are several other good ones already on this page.

Found in Good condition.

[Photos:]
photoCZ4120

found in good shape

[Photos:]
photoMAGNETIC AZ MK

Found in good condition, out benchmarking.

[Photos:]
photoP1010033

I walked over here from the Tucson Camera marker, saw the concrete while I was still over 150 ft away. Easy find, good condition.

Also found Gravity Stations Tucson A and B in the area, but they aren't in the GC database or the NGS database. Just my usual luck.

[Photos:]
photoMagnetic Azimuth
photoGravity stations, Tucson A and B
photostation A
photostation B

Recovered in good condition as described.

[Photos:]
photoCZ2410 - Benchmark - Pima County, AZ
photoCZ2410 - South looking North

Found in good condition.

[Photos:]
photo08/03/2007

Found a way In With My Buddy McamAz. Benchmark still in good condition.

[Photos:]
photoSTP60605.JPG

Recovered as described, in good condition.

[Photos:]
photoMAGNETIC AZ MK / CZ2410
A close-up of the mark, with the GPSr.
photoMAGNETIC AZ MK / CZ2410
A close-up of the mark alone.
photoMAGNETIC AZ MK / CZ2410
A wide view of the general area, looking west.

I haven't been in the area with my GPS unit yet, however I thought folks might enjoy a few pictures from 1976. Back then there was the magnetic observatory and a U of A lightning lab as well. They had a massive array of UHF / VHF antennas.

I took these snapshots when I was still in high school. The antenna was located south of CZ2410 next to a metal building. I'm sure the slab for both the mast and building are still there but I will check the next time I'm out with my Geko. Enjoy the photos.

[This entry was edited by Bear and Mouse on Tuesday, January 02, 2007 at 7:30:18 PM.]

[Photos:]
photoMAGNETIC OBSERVATORY & U of A Lightning lab antenn
U of A Lightning lab antennas just south of the MAGNETIC OBSERVATORY 1976.
photoMAGNETIC OBSERVATORY & U of A Lightning lab antenn
1976
N 32° 14.774 W 110° 50.103

GPS was showing accuracy to 17 feet.

Still there and in perfect shape!

[Photos:]
photoCZ2410

Found this along with another in the park...

Quick find while nearby at CZ1829.

[Photos:]
photoCloseup View

I found a hole in the wired fence and looked left and right, I saw nobody and went to the point and made a picture. Thanks for the benchmark!

[Photos:]
photoCZ2410

I could not gain access to the area so I took readings from three sides and found that if you
go to the southern most reading you can see the
marker thru the fence, is an aluminum post approx.
4 ft high, set in cement base.

350 feet was about the closest I could get to this, at the south side of the compound. I drove all the way around, the only entrence is on the north side, which is locked. Unlike CZ1826 & CZ1828, this one should be safe.

[Photos:]
photoCZ2410

Documented History (by the NGS)

01/01/1983 by AZDT (MONUMENTED)
07/02/1990 by AZ-019 (GOOD)
DESCRIBED BY PIMA COUNTY ARIZONA 1990 TO REACH STATION FROM THE INTERSECTION OF INTERSTATE 10 AND KOLB ROAD , EXIT NUMBER 270, TRAVEL NORTH ALONG KOLB ROAD 16.09 KM (10.00 MI) TO THE INTERSECTION OF KOLB ROAD AND TANQUE VERDE ROAD. TURN RIGHT (NORTHEAST) AND TRAVEL NORTHEAST AND EAST ALONG TANQUE VERDE ROAD 1.13 KM (0.70 MI) TO THE ENTRANCE TO THE MORRIS K. UDALL U.S.C.G.S. MAGNETIC OBSERVATORY REGIONAL PARK. TURN RIGHT (SOUTH) AND FOLLOW PAVED ROAD 0.16 KM (0.10 MI) TO RAMADA NO. 3. TAKE SINGLE LANE PAVED ROAD SOUTH AND EAST AND PASS THROUGH CHAIN LINK FENCE GATE WITH UNAUTHORIZED VEHICLES PROHIBITED SIGN. CONTINUE SOUTHERLY 2.41 KM (1.50 MI) TO MAGNETIC OBSERVATORY ENTRANCE AND CYCLONE CHAIN LINK FENCE RUNNING EAST-WEST. STAY ON GRAVEL ROAD HEADING EAST PAST OFFICE ON THE LEFT (SOUTH). CONTINUE PAST DATE PALM TREE ON RIGHT THEN BETWEEN SMALL PALO VERDE TREE ON LEFT AND LARGE MESQUITE TREE WITH STONE TANK ON RIGHT. PASS BETWEEN TWO GARAGES. PROCEED 0.16 KM (0.10 MI) EASTTHROUGH OLD BARBED WIRE FENCE (CUT) TO A 1.22 M (4.00 FT) TALL ORANGE-RED GOVERNMENT WITNESS POST. MARKER IS 28.96 M (95.01 FT) SOUTH.
05/21/1996 by USPSQD (GOOD)
RECOVERY NOTE BY US POWER SQUADRON 1996 RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were established by GPS observations and adjusted by the National Geodetic Survey in August 1993.
  • The orthometric height was determined by GPS observations and a high-resolution geoid model.
  • The X, Y, and Z were computed from the position and the ellipsoidal ht.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The ellipsoidal height was determined by GPS observations and is referenced to NAD 83.
  • The geoid height was determined by GEOID99.

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