2003-11-11

GU3398 - HELM 2

N 36°35.388'
W 120°03.683'

Elev=176'

DESIGNATION - HELM 2
PID - GU3398
STATE/COUNTY- CA/FRESNO
USGS QUAD - HELM (1963)

Did not find it. Looked for it at 15:00, 11 November 2003. Found only Reference Mark No.3.

Original NAD83 coordinates were located about 0.02 miles easterly of the found WGS84 coordinates for Reference Mark No.3. WGS84 coordinates for the mark found by 3.5 minute occupation with 8 strong satellites and 1 WAAS satellite.

Reference Mark #3 detail - Helm 2, 1961


Reference Mark #3 & GPSr on the canal headwall


Reference Mark #3 & GPSr on the canal headwall


Looking north up State Route 145.


Looking northeasterly up the canal.

AC6109 - HPGN D CA 06 NF

N 36°35.405'
W 120°03.651'

Elev=176'

DESIGNATION - HPGN D CA 06 NF
PID - AC6109
STATE/COUNTY- CA/FRESNO
USGS QUAD - HELM (1963)

Found it at 15:00, 11 November 2003 as described and in good condition.

The found coordinates were identical to the published coordinates. Coordinates for the mark found by 4 minute occupation with 8 strong satellites and 1 WAAS satellite.

Station detail


Station in monument well with the lid removed


The monument well and the GPSr


Station AC6109, view north across McMullin Grade


Station AC6109, view southwesterly toward the intersection of McMullin Grade and State Route 145