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Details for Benchmark: FQ0591

N 35° 18.972 W 111° 14.572 (NAD 83)

Altitude: 5612.1

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

Location:
In COCONINO county, AZ View Original Datasheet
Designation:
MERRIAM AZ MK
Marker Type:
triangulation station disk
Setting:
set into the top of a round concrete monument
Stability:
May hold, but of type commonly subject to surface motion.

Reference Points

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Benchmark in "2oldfarts" entry/photo in concrete not found, presumed destroyed. GLO marker very prominent and easy to find. Discovered this BM after a visit to Grand Falls. Did not have good data with us to search for BM. Actual mark may still exist but buried.

[Photos:]
photoIMG_1938

Recovered in poor condition (Destroyed is more like it!). The station is severely tilted. The referenced GLO marker is right next to the fence post.

[Photos:]
photoMerriam Azimuth mark near Flagstaff, AZ
photoMerriam Azimuth view south
photoMerriam Azimuth referenced GLO mark

Documented History (by the NGS)

01/01/1936 by CGS (MONUMENTED)
DESCRIBED BY COAST AND GEODETIC SURVEY 1936 (JDT) STATION MERRIAM AZ. IS LOCATED ABOUT 0.15 MILE SOUTH OF AN EAST-WEST ROAD, ABOUT 6 FEET WEST OF A NORTH-SOUTH FENCE, 6.12 FEET WEST OF A GENERAL LAND OFFICE MARKER MARKED AS FOLLOWS-- T22N R11E S5 S8 M1L N1R. TO REACH THE STATION FROM FLAGSTAFF GO EAST ON U.S. HIGHWAY 66 FROM THE COMMERCIAL HOTEL 14.05 MILES TO AN IMPROVED DIRT ROAD TO THE LEFT (NORTH), TAKE THIS ROAD AND GO NORTHEAST AND NORTH 15.20 MILES TO A CATTLE GUARD AND A NORTH-SOUTH FENCE, TURN SOUTH ALONG THE WEST SIDE OF FENCE AND GO ABOUT 0.15 MILE TO THE STATION. THE STATION MERRIAM WAS USED AS AN AZIMUTH FOR THIS STATION. THERE ARE NO REFERENCE MARKS FOR THE STATION AND NO UNDERGROUND MARK. STATION MERRIAM, THE AZIMUTH FOR THIS STATION, IS LOCATED ABOUT 3-1/2 MILES WEST-NORTHWEST OF THE STATION, ON THE TOP OF MERRIAM CRATER, A HIGH CINDER CONE LYING ABOUT 22 MILES NORTHEAST OF FLAGSTAFF, AND THE MOST PROMINENT IN THE VICINITY, ABOUT 1 MILE NORTHWEST OF THE FLAGSTAFF-LEUPP ROAD. THE MARK IS A 1-INCH PIPE WITH A STANDARD DISK WELDED IN THE TOP AND PROJECTS ABOUT 10 INCHES ABOVE THE GROUND. ALL LINES VISIBLE FROM THIS STATION FROM A 4-FOOT STAND.
01/01/1955 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1955 (LFW) THE STATION WAS RECOVERED IN GOOD CONDITION. A REVISED DESCRIPTION FOLLOWS-- TO REACH FROM THE INTERSECTION OF U.S. HIGHWAYS 66 AND 89 E OF FLAGSTAFF, GO N ON U.S. HIGHWAY 89 FOR 2.4 MI. TO A PAVED ROAD RIGHT (OLD HIGHWAY 66), TURN RIGHT (E) AND GO 8.1 MI. TO A GRADED ROAD LEFT. TURN LEFT (N) AND FOLLOW THE GRADED ROAD N AND NE FOR 15.2 MI. TO A FENCE AND CATTLE GUARD. TURN RIGHT (S) ALONG THE W SIDE OF THE FENCE AND GO 0.15 MI. TO THE STATION. THE STATION MARK IS A STANDARD AZIMUTH-MARK DISK, STAMPED MERRIAM 1936 AND SET IN THE TOP OF A 10-IN. SQUARE CONCRETE MONUMENT PROJECTING 0.2 FT., AND 6 FT. W OF A N-S FENCE.
01/01/1965 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1965 (FHB) THE STATION MARK WAS RECOVERED AND FOUND IN GOOD CONDITION. A NEW AND COMPLETE DESCRIPTION FOLLOWS. TO REACH THE STATION FROM THE WINONA TRADING POST, WHICH IS 14 MILES EAST OF FLAGSTAFF, ARIZONA, GO NORTHWEST ON A PAVED ROAD FOR 2.2 MILES TO A PAVED ROAD RIGHT. TURN RIGHT AND GO NORTHERLY ON PAVED ROAD FOR 13.0 MILES TO A SIDE LEFT LEADING TO GRAND FALLS. CONTINUE STRAIGHT AHEAD ON THE PAVED ROAD FOR 1.7 MILES TO A FENCE AND A CATTLE GUARD. TURN RIGHT AND GO SOUTH ALONG THE WEST SIDE OF THE FENCE FOR 0.2 MILE TO THE STATION.
01/01/1967 by CGS (GOOD)
RECOVERY NOTE BY COAST AND GEODETIC SURVEY 1967 (KFB) THE STATION MARK WAS RECOVERED AND FOUND IN GOOD CONDITION. A NEW DESCRIPTION TO REACH THE STATION FOLLOWS. TO REACH THE STATION FROM THE RAILROAD OVER-PASS IN WINONA, GO WESTERLY ON THE OLD U.S. HIGHWAY 66 FOR 2.0 MILES TO A T-ROAD RIGHT AND SIGN LEUPP 29. TURN RIGHT AND GO NORTHEAST ON THE LEUPP ROAD FOR 15.0 MILES TO A CATTLE GUARD AND A DIM TRACK ROAD RIGHT. TURN RIGHT AND GO SOUTH ON THE TRACK ROAD (ALONG THE WEST SIDE OF A NORTH-SOUTH FENCELINE) FOR 0.2 MILE TO THE STATION ON THE LEFT. AIRLINE DISTANCE AND DIRECTION FROM NEAREST TOWN--22.0 MILES NORTHEAST OF FLAGSTAFF, 10.0 MILES NORTH OF INTERSTATE 40, 12.0 MILES WEST OF LEUPP AND ABOUT 2.5 MILES SOUTH-SOUTHEAST OF MERRIAM CRATER.

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 vertical order pertains to the superseded datum.
  • The Laplace correction was computed from DEFLEC99 derived deflections.
  • The geoid height was determined by GEOID99.

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