Join Free
1954 Map of Blackrock Mtn, 1973 Print
Loading...
Loading map...

1954 Map of Blackrock Mtn

USGS Topo · Published 1973

About this map

Six Rivers National Forest, Trinity National Forest, and Mendocino National Forest converge in this high-altitude landscape where the Mad River and Trinity River carve through complex ridges. The map reveals a network of remote outposts and resource extraction sites, including the Bonanza Mine near Van Horn Peak and the Lucky Sunday Mine to the southwest. These names hint at the mid-century persistence of mining and ranching interests in a region dominated by public lands and the Yolla Bolly wilderness.

Find a feature on this map

129 named features on this map. Tap any name to fly to it.

Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.

Map Details

Date Portrayed1954
Date Published1973
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions17.3 x 21.8 inches

Editions of this 1954 Blackrock Mtn Map

Historical Maps of Penney Through Time

293 maps found

Featured Locations

Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain