Sarting at the intersection of McNamara Rd & Dan McNamara Rd, we continued south on Dan McNamara Rd. There are 3 unnamed roads indicated on the Merced6 map between McNamara Rd and Sandymush Rd. 2 of these go straight east. All such roads we found were locked but we scanned while driving slowly.
Stopped and scanned the "Duck Slough #2" and "McNamara #2" region east of Dan McNamara Rd from
37 12 11.4N 120 40 15.1W
No colony spotted.
With Orien Richmond and Partha Nandi.
Lat/Long: my device has data in degrees minutes seconds; I used fcc.gov to convert data to digital.