Measuring coordinates for points on the map:

A – 37° 35' N 122° 05' W

B – 37° 32.5' N 122° 06.5' W or 37° 32' 30" N 122° 06' 30" W

C – 37° 36.8' N 122° 02.3' W or 37° 36' 45" N 122° 02' 15" W

Plotting coordinates onto the map:

37° 35' N 122° 05.8' W is the camp site

37° 31' 30" N 122° 02' 10" W is the mine

37° 33.6' N 122° 03.7' W is the ranger station