Black Rock UT: Millard County obsidian flats

ROCKHOUNDING OPEN / LEGAL DOCUMENTED

Where: West · North America · approx. 38.55, -113.09 (vicinity only)

Why this spot: Rockhounding locality: snowflake and mahogany obsidian scattered over the Black Rock volcanic desert of Millard County

What turns up: snowflake obsidian, mahogany obsidian, black Apache tears

Access: Open / legal.

BLM casual collecting: personal-use quantities (about 25 lb per day), hand tools, no collecting on any staked claims

Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.

Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.