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Details for Benchmark: DV1911

N 33° 26.389 W 113° 02.409 (NAD 83)

Altitude: 3040

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

Location:
In MARICOPA county, AZ View Original Datasheet
Designation:
SADDLE MOUNTAIN
Marker Type:
triangulation station disk
Setting:
in rock outcrop
Stability:

Reference Points

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Found while hunting the nearby geocache. The station and both RM's were in good shape.

I found Saddle Mountain Triangulation Station and both Reference Marks in good condition.

The azimuth Mark was searched for (in a cattle guard) but was not found.
Road improvements (and a new cattle guard) may be the reason it's gone.

[Photos:]
photoSaddle Mountain Triangulation Station
To the right is the summit log. - It was on top of the Tri Mark when I arrived.
photoSaddle Mountain Triangulation Station (1947)
Datasheet states it was monumented in 1948
photoSaddle Mountain Triangulation Station and GPSr
photoFrom Tri Mark to RM #1
Looking southeast
photoSaddle Mountain RM #1
photoSaddle Mountain RM #2 from Tri Mark
Looking north
photoSaddle Mountain RM #2
photoLooking east from the Tri Mark
photoLooking south from the Tri Mark
photoLooking north from the Tri Mark

Found summit log on top of Triangulation station.

[Photos:]
photoPalo verde power plant
photoTriangulation station mark
photoR M 1
photoR M 2
photoAccess road
photoSome irrigated land
photoWhat is this place?

Recovered in good condition.

[Photos:]
photoDV1911
photoWith GPS
photoRM1
photoRM2
photoLooking N from RM1 to Marker

Recovered station SADDLE MOUNTAIN, along with RM 1 and RM 2, all in good condition.

[Photos:]
photoDV1911 SADDLE MOUNTAIN closeup
photoDV1911 SADDLE MOUNTAIN wide view looking NW
photoDV1911 SADDLE MOUNTAIN RM 1
photoDV1911 SADDLE MOUNTAIN RM 2

Recovered the mark and RM1 in good condition. I did not see RM2, I looked briefly but was unsure where it was supposed to be.

[Photos:]
photoDV1911 SADDLE MTN up close with GPSr
photoDV1911 SADDLE MTN up close
photoDV1911 SADDLE MTN NO 1 up close with GPSr
photoDV1911 SADDLE MTN NO 1 up close
photoDV1911 SADDLE MTN view west
photoDV1911 SADDLE MTN view south

Recovered as described, in good condition.

[Photos:]
photoSaddle Mountain / DV1911
A close-up of the mark.
photoSaddle Mountain / DV1911
A close-up of RM 1.
photoSaddle Mountain / DV1911
A close-up of RM 2.

Documented History (by the NGS)

01/01/1948 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1948 (DHK) THE STATION IS LOCATED ABOUT 6.5 MILES AIRLINE SOUTHWEST OF TONOPAH ON THE MOST NORTHERN AND HIGHEST POINT OF SADDLE MOUNTAIN. THE STATION MARK IS SET 15 FEET EAST OF THE EDGE OF A 250 FOOT VERTICAL CLIFF AND 10.5 FEET SOUTHEAST OF A 6 FOOT CAIRN. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN 1947. REFERENCE MARK NO. 1 IS SET 12 FEET EAST OF THE EDGE OF CLIFF AND 30 INCHES LOWER THAN THE STATION MARK. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN NO 1 1947. REFERENCE MARK NO. 2 IS SET 20 FEET EAST OF THE EDGE OF CLIFF AND 1 FOOT LOWER THAN THE STATION MARK. IT IS SET FLUSH AND IS STAMPED, SADDLE MTN NO 2 1947. THE AZIMUTH MARK IS SET IN THE NORTH HEADWALL OF A CATTLE GUARD, 1 FOOT HIGHER THAN THE ROADWAY. IT IS STAMPED, SADDLE MTN 1947. TO REACH THE STATION FROM TONOPAH. GO SOUTH 2.5 MILES TO A T INTERSECTION. TURN RIGHT, GO 5.0 MILES TO A CATTLE GUARD AND AZIMUTH MARK. CROSS CATTLE GUARD, TURN LEFT, FOLLOW ROAD SOUTHERLY ABOUT 1 MILE TO END OF ROAD. CONTINUE CROSS COUNTRY SOUTHWESTERLY ABOUT 0.8 MILE TO END OF TRUCK TRAVEL. FROM HERE WALK UP STEEP WASH WESTERLY TO BASE OF CLIFF. FOLLOW BASE OF CLIFF SOUTHERLY TO SADDLE, THEN FOLLOW RIDGE WEST AND NORTH TO HIGHEST POINT AND STATION. A 2 HOUR PACK.

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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