LOW HILL (CH0178)
State: AZ
County: Pima
Quad: Lukeville
Location: N 31° 59.471' W112° 45.052'
Elevation: 1999 ft.
Designation: LOW HILL 1936
Setting: Boulder
Type: Triangulation Station
Year: 1936
Established By: NGS
Recovered: 19 May 2007
NGS Official Description, 1936 (see datasheet for recent updates) :
DESCRIBED BY COAST AND GEODETIC SURVEY 1936 (JB) ON THE PAPAGO INDIAN RESERVATION, ABOUT 1-1/2 MILES EAST OF ITS WEST BOUNDARY, 28 MILES SOUTH-SOUTHEAST OF AJO, 10 MILES NORTH-NORTHEAST OF SONOYTA, SONORA, MEXICO, JUST SOUTHWEST OF THE BASE OF THE SIERRA DEL AJO, ABOUT 1-1/4 MILES EAST OF THE AJO-SONOYTA ROAD, ON THE SUMMIT OF A LOW BRUSHY HILL AT ITS SOUTH END AND ABOUT 50 YARDS SOUTH OF AND 5 FEET LOWER THAN ITS HIGHEST POINT, IN TOP OF ONE OF THE BLACK BASALTIC BOULDERS WHICH COVER THE SUMMIT AND IN THE CENTER OF A HALF CIRCLE OF LOOSE BOULDERS. MARKED BY A STANDARD BRONZE DISK. REFERENCE MARK NO. 1, A STANDARD BRONZE REFERENCE DISK, IS 2.972 METERS (9.75 FEET) FROM STATION S 85 DEG 24 MIN E. REFERENCE MARK NO. 2, A STANDARD BRONZE REFERENCE DISK, AT THE SOUTH END OF THE SUMMIT, IS 13.215 METERS (43.36 FEET) FROM STATION S 40 DEG 03 MIN W. THE AZIMUTH MARK, A STANDARD BRONZE DISK, IS ON THE SUMMIT OF THE FIRST HILL TO THE WEST ACROSS THE WASH, ABOUT 75 YARDS NORTH OF THE SOUTH END OF THE HILL, ON ITS LONGITUDINAL CENTER AND ONE-HALF MILE FROM STATION S 75 DEG 46 MIN W.
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...NGS Triangulation Station LOW HILLN 31° 59.471' W112° 45.052' |
...Eyelevel view of the disk set into a basalt boulder. |
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...The mark is nestled among these boulders beneath a young palo verde tree. |
...Looking NE toward RM1 and the Diablo Mountains. |
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...NGS Reference Mark Disk LOW HILL RM 1N 31° 59.472' W112° 45.051' |
...Eyelevel view of the disk set into a basalt boulder. |
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...Looking NE toward the Diablo Mountains. |
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...NGS Reference Mark Disk LOW HILL RM 2N 31° 59.467' W112° 45.057' |
...Eyelevel view of the reference mark disk set into a basalt boulder. |
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...Looking W toward the azimuth mark, the road, and mountains in the background. |
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...NGS Azimuth Mark Disk LOW HILL AZ MKN 31° 59.317' W112° 45.774' |
...The disk and surrounding boulders, as it appeared when we arrived. Note the piece of wood across the top. |
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...An eyelevel view of the disk on the boulder, once we removed the wood. |
...Looking approximately W. |
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...Looking ENE, toward LOW HILL and the mountains beyond. |
...Remains of the old batteries we found (Rich's pen included for scale). |
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...Looking SE from the edge of the hill toward our car in the distance! |