Big Rock Spring
Spring in Union County, Oregon · on the USGS Summerville quadrangle
45.44423, -118.11514
Maps that show Big Rock Spring
Get them in the map app
Summerville, OR
Detailed map of terrain, trails and roads
USGS topo, 2024
Summerville
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Drumhill Ridge
Forest Service topo with road numbers
Forest Service FSTopo 7.5-minute quad
Map 12 Motor Vehicle Use Map (MVUM)
Forest roads and trails open to vehicles
Umatilla National Forest (2026)
La Grande 30x60 Land Ownership (BLM Surface Management)
Land Ownership Maps from BLM Data · Oregon
Umatilla National Forest
East — Forest Service forest map
Wallowa-Whitman National Forest Snowmobile Map (2023)
Forest Service Maps · Wallowa-Whitman National Forest
Wallowa-Whitman National Forest
Forest Service forest map
IFR Enroute Low Altitude Chart L-11 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-13 (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
IFR Enroute Low Altitude Chart L-01 (Alaska)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).