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Details for Benchmark: FV0699

N 35° 24.717 W 120° 52.367 (NAD 83)

Altitude: 23.11

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

Location:
In SAN LUIS OBISPO county, CA View Original Datasheet
Designation:
M 693
Marker Type:
bench mark disk
Setting:
light structures
Stability:
Mark of questionable or unknown stability.

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2009 Settings contest outing :)

[Photos:]
photoFV0699 - Morro Bay, Ca
photoFV0699 - Setting

Out grabbing some Benchmarks with my kid

[Photos:]
photoM 693 Up Close
photoM 693 Facing North

found as described

Found as described. With NamGuy today.

Found as described.

[Photos:]
photoM693_1
photoM693_2

Saw this driving by and stopped to photograph it, nice and still intact.

[Photos:]
photoBM

Documented History (by the NGS)

01/01/1943 by CGS (MONUMENTED)
01/01/1952 by NGS (GOOD)
DESCRIBED BY NATIONAL GEODETIC SURVEY 1952 3.2 MI NW FROM MORRO BAY. 3.2 MILES NORTHWEST ALONG STATE HIGHWAY 1 FROM MORRO BAY, SAN LUIS OBISPO COUNTY, AT THE BRIDGE OVER TORO CREEK, IN THE SOUTH END OF THE WEST WALK, AND 15 FEET WEST OF THE CENTERLINE OF THE HIGHWAY. A STANDARD DISK, STAMPED M 693 1943.
01/01/1977 by NGS (GOOD)
RECOVERY NOTE BY NATIONAL GEODETIC SURVEY 1977 3.0 MILES NORTHWEST ALONG STATE HIGHWAY 1 FROM THE OVERPASS OVER MAIN STREET AT MORRO BAY, SET IN THE TOP AND 1 FOOT NORTHWEST OF THE SOUTHEAST END OF THE SOUTHWEST CONCRETE CURB FOR THE NORTH BOUND LANES BRIDGE OVER TORO CREEK, 16.5 FEET SOUTHWEST OF THE CENTER LINE OF THE NORTH BOUND LANES OF THE HIGHWAY.
08/23/1990 by USGS (GOOD)
RECOVERY NOTE BY US GEOLOGICAL SURVEY 1990 (LML) RECOVERED IN GOOD CONDITION.

Control Text

  • The horizontal coordinates were scaled from a topographic map and have an estimated accuracy of +/- 6 seconds.
  • The orthometric height was determined by differential leveling and adjusted by the National Geodetic Survey in June 1991.
  • The geoid height was determined by GEOID99.
  • The dynamic height is computed by dividing the NAVD 88 geopotential number by the normal gravity value computed on the Geodetic Reference System of 1980 (GRS 80) ellipsoid at 45 degrees latitude (G = 980.6199 gals.).
  • The modeled gravity was interpolated from observed gravity values.

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