Join Free
1989 Map of East of May
Loading...
Loading map...

1989 Map of East of May

USGS Topo · Published 1989

About this map

The Pahsimeroi Valley occupies the heart of this landscape, where the wide alluvial floor is defined by the braided path of the Pahsimeroi River. This 1989 provisional survey captures the transition from the high eastern peaks of the Challis National Forest to the productive ranching and agricultural flats of Lemhi County. The drainage pattern is the dominant organizational force here, with numerous watercourses like Morse Creek, Patterson Creek, and Falls Creek descending from the mountain front to join the primary river system. Evidence of local land use is sparse but specific, noted by a Borrow Pit and the boundary line between Lemhi Co and Custer Co. The map reveals a specialized high-desert mountain environment where water management and topographical boundaries dictated the placement of early routes and resource extraction sites.

Find a feature on this map

13 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 Portrayed1989
Date Published1989
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1989 East of May Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Custer County Through Time

534 maps found

Featured Locations

Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain