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Details for Benchmark: FS1080

N 35° 12.992 W 114° 32.205 (NAD 83)

Altitude: 1580

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

Location:
In MOHAVE county, AZ View Original Datasheet
Designation:
BULLSHEAD
Marker Type:
NGS Benchmark
Setting:
setting not listed - see description
Stability:
Most reliable and expected to hold position/elevation well.

Reference Points

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N 35° 11.358 W 114° 30.612

Greetings fellow benchmarkers,

It may seem strange to log a note for a nonPID benchmark along with a found PIDed one, but here are lat/long and a pic of the USGS benchmark (53EAM 1965) that previous loggers have claimed as BULLSHEAD.

At least there will be a pic as soon KayakBird posts one. Mine was too fuzzy.

JCS

[Photos:]
photoNONPID USGS 53 EAM 1965
photoNONPID USGS 53 EAM 1965
LOOKING SW, BUT NO BULLSHEAD IN SIGHT

Please accept my apologies in advance if this log offends anyone who has already logged this station. FS1080 BULLSHEAD is nowhere near the High Voltage cache. As of this date, KayakBird and I followed the calls in the DS and Delorme Topo navigation and found, in this order, the "end of truck travel", the AZ, the station, and both RMs. There is no power line anywhere near this station. Since one picture is worth a thousand words, posted herewith are several thousand words.

[Photos:]
photoFS1080BullsheadTri
photoFS1080BullsheadRM1
photoFS1080BullsheadRM2
photoFS1080BullsheadAZ
photoFS1080BullsheadTowardLakeMahave
photoFS1080BullsheadTowardLaughlinNV
photoHighwayTowardFs1080Bullshead

found benchmark when we were at the High Voltage Cache on 01/10/10, was in the concrete piller by the power pole leg

Found it along with a nearby cache on our way to Laughlin.

Go this one while doing near by cache. I didn't have my camera to take a picture (not sure if it would have came out being it was dark).

Found embedded in the concrete base of a tower for high voltage transmission lines, in excellent condition.

Got it with a nearby cache

Found while doing the High Voltage cache. It is a survey disk embedded in the foot of a high power line.

Documented History (by the NGS)

01/01/1934 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1934 (CP) STATION IS 2-1/4 MILES E OF THE COLORADO RIVER ON THE HIGHEST POINT OF ROCKY BLACK RANGE OF MOUNTAINS KNOWN LOCALLY AS BULLSHEAD MOUNTAINS, 12 MILES A LITTLE E OF N OF OLD FORT MOHAVE AND 1 MILE SE (140 DEGREES MAGNETIC) FROM THE KATHERINE MINES STAMPMILL. STATION IS 12.27 FEET SW OF THE ROCK CAIRN WHICH IS ON THE HIGHEST POINT OF THE MOUNTAIN. THE STATION AND REFERENCE MARK NO. 1 ARE STANDARD BRONZE DISKS WEDGED IN DRILL HOLES IN OUTCROPPING BEDROCK. REFERENCE MARK NO. 3 (AZIMUTH) IS 0.2 MILE NW OF THE END OF A ROCKY RIDGE WHICH IS IN LINE WITH THE STATION AND KATHERINE MILL. MARK IS SET IN THE FACE OF A SLOPING ROCK. THE STATION IS BEST REACHED FROM KINGMAN BY W ON THE CHLORIDE ROAD 6.0 MILES TO A FORK, TAKE LEFT FORK AND FOLLOW MAIN ROAD 24.3 MILES TOWARD KATHERINE AND TURN LEFT OFF MAIN ROAD (THIS POINT IS ABOUT 1 MILE BEFORE REACHING THE KATHERINE STAMPMILL), GO 0.1 MILE, TURN LEFT, GO 0.1 MILE, TURN RIGHT, GO 0.4 MILE AND PASS UNDER TELEPHONE LINE, TAKE RIGHT FORK 100 FEET S OF TELEPHONE LINE, FOLLOW DIM ROAD 0.8 MILE TO END OF TRUCK TRAVEL AT BASE OF PEAK. CAIRN AT STATION IS ABOUT 1/2 MILE, A LITTLE E OF S FROM HERE. ABOUT 30-MINUTE PACK.
01/01/1948 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1948 (FAR) THE STATION IS ABOUT 2-1/2 MILES, AIRLINE, NORTHEAST OF DAVIS DAM, 2-1/4 MILES EAST OF THE COLORADO RIVER, ON THE HIGHEST PEAK OF A BLACK ROCKY RANGE OF MOUNTAINS KNOWN LOCALLY AS THE BULLSHEAD MOUNTAINS. THE ROCK CAIRN WHICH WAS DESCRIBED IN THE ORIGINAL DESCRIPTION AS A REFERENCE POINT HAS BEEN DESTROYED. THE STATION MARK, REFERENCE MARK NO. 1, AND THE AZIMUTH MARK ARE IN GOOD CONDITION. REFERENCE MARK NO. 2 WAS ESTABLISHED AND IS DESCRIBED BELOW. THE STATION MARK, A STANDARD DISK CEMENTED IN A DRILL HOLE IN BEDROCK, FLUSH WITH THE SURFACE OF THE GROUND, IS STAMPED BULLSHEAD 1934. IT IS 4 FEET LOWER IN ELEVATION THAN THE HIGHEST POINT ON THE PEAK WHICH IS 12 FEET NORTH OF THE STATION. REFERENCE MARK NO. 1, A STANDARD DISK CEMENTED IN A DRILL HOLE IN BEDROCK WHICH IS APPROXIMATELY THE SAME ELEVATION AS THE STATION MARK, IS STAMPED BULLSHEAD NO 1 1934. REFERENCE MARK NO. 2, A STANDARD DISK CEMENTED IN THE TOP OF A MASS OF OUTCROPPING BEDROCK WHICH PROJECTS 8 INCHES ON THE EAST SIDE AND 2 FEET ON THE WEST SIDE, IS STAMPED BULLSHEAD NO 2 1948. THE AZIMUTH MARK IS A STANDARD REFERENCE MARK DISK CEMENTED IN A DRILL HOLE IN THE TOP OF BED ROCK WHICH IS INCLINED ABOUT 30 DEGREES. IT IS ON THE SOUTHERN SLOPE OF THE RIDGE WHICH IS TRAVERSED TO REACH THE STATION AND IS ABOUT 0.2 MILE SOUTHEAST OF THE SPOT WHERE TRUCK TRAVEL ENDS. THERE IS A ROCK CAIRN ON THE TOP OF THE RIDGE 6 FEET ABOVE AND 6 FEET NORTH OF THE MARK. THE DISK IS STAMPED BULLSHEAD NO 3 1934. TO REACH THE STATION FROM THE POST OFFICE AT DAVIS DAM ON THE WEST SIDE OF THE COLORADO RIVER JUST SOUTHWEST OF THE DAM SITE GO NORTH ALONG THE WEST SIDE OF THE RIVER 3/4 MILE TO THE WEST END OF THE FOURTH BRIDGE UP STREAM. TURN RIGHT AND CROSS THE BRIDGE. TAKE THE MIDDLE ROAD OF THREE AND GO NORTH AND EAST ALONG THE EAST SIDE OF THE RIVER FOR 2.2 MILES TO A FORK. TAKE THE RIGHT HAND ROAD AND GO 0.4 MILE TO A TRACK ROAD LEFT. TAKE THE TRACK ROAD LEFT WHICH SKIRTS AROUND THE LEFT SIDE OF A GROUP OF LOW HILLS AND GO 0.4 MILE. TURN EASTERLY ON A DIM TRACK ROAD AND GO UP A RIDGE FOR 0.4 MILE TO THE WESTERN BASE OF A MOUNTAIN AND THE END OF TRUCK TRAVEL. FROM HERE PACK SOUTHEAST TO A SPUR RIDGE (THE AZIMUTH IS ABOUT HALF WAY UP THIS RIDGE) THENCE EASTERLY UP THIS RIDGE TO A SMALL SADDLE IN THE MAIN RIDGE. TURN RIGHT, SOUTHERLY, ALONG THE TOP OF THE MAIN RIDGE AND GO TO THE SUMMIT AND STATION. A 1/2 HOUR PACK.
01/01/1948 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1948 RECOVERED IN GOOD CONDITION.
01/01/1955 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (FN) RECOVERED - THE STATION AND THE REFERENCE MARKS WERE RECOVERED IN GOOD CONDITION AS DESCRIBED BY F.A.R. IN 1948. NO SEARCH WAS MADE FOR THE AZIMUTH MARK. THE DESCRIPTION IS ADEQUATE EXCEPT FOR THE DIRECTIONS FOR REACHING THE STATION. NEW DIRECTIONS FOLLOW-- TO REACH THE STATION FROM THE EAST SIDE OF DAVIS DAM, GO EAST ON ARIZONA STATE HIGHWAY 68 FOR 0.4 MILE TO A PAVED ROAD NORTH, LEADING TO THE BOAT LANDING ON THE EAST SIDE OF LAKE. PROCEED NORTHEASTERLY ALONG THE PAVED ROAD FOR ABOUT 1.9 MILES TO THE NORTH SIDE OF THE MOUNTAIN RANGE. FROM THIS POINT PACK SOUTHEASTERLY FOR ABOUT 0.3 MILE TO THE HIGHEST PEAK IN THE AREA AND THE STATION.
01/01/1973 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1973 (CN) THE STATION MARK, REFERENCE MARKS 1 AND 2 AND THE AZIMUTH MARK (R.M. 3) WERE RECOVERED AS DESCRIBED IN 1948. THE ROUTE TO THE STATION IS ADEQUATE. THE CAIRN NEAR THE STATION HAS BEEN REMOVED. OWING TO A LATE EVENING STORM THE STATION WAS REACHED AFTER DARK AND THE GROUND WORK WAS NOT COMPLETED. HEIGHT OF LIGHT ABOVE STATION MARK 5 FEET. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--7 MILES NORTHEAST OF BULLHEAD CITY.

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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