Clarks Valley
Basin in Lassen County, California · on the USGS Cold Spring Mountain quadrangle
41.06240, -120.25244
Maps that show Clarks Valley
Get them in the map app
Cold Spring Mountain, CA
Detailed map of terrain, trails and roads
USGS topo, 2022
Cold Spring Mountain
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Boot Lake
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Alturas 30x60 Land Ownership (BLM Surface Management)
Land Ownership Maps from BLM Data · California
Modoc National Forest
Forest Service forest map
Nevada Surface Management Map
BLM Nevada (2023)
IFR Enroute Low Altitude Chart L-02 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-09 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-11 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-03 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-01 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).