Bighorn National Forest — Rockhounding Rule & Area Guide
Rocks and mineral specimens
Core atlasWYOMING CITY ROCKHOUNDING HUB
Seminoe mineral rocks, North Platte terraces and central Wyoming mining history.
LOCAL INTERACTIVE MAP
Explore nearby Wyoming records without leaving this hub. Status, coordinate precision and access evidence determine whether a pin is a realistic field destination.

Reference photograph used for rock and mineral identification. It is not from this exact location or a guarantee that collecting is permitted.
This hub uses Casper as a geographic base, while the material mix is calculated from the records actually mapped around it.
Records are ordered by evidence status first, then distance. Open the detailed guide before treating any pin as a trip destination.
Rocks and mineral specimens
Core atlasSmall surface rocks and minerals; prospecting context
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