Where to Find Andesite in the United States

1 mapped andesite spots across 1 U.S. states. Andesite is reported at multiple rockhounding spots across the United States. The map below shows where collectors most often find it on legal public ground.

Learn about andesite: properties & identification →

Map showing where to find andesite across the United States, with 1 mapped spots

Top states for andesite

States ranked by number of andesite spots in our database. States in bold link to a focused andesite-in-state list.

Every andesite spot we track

Sorted by state and county. Coordinates open in Google Maps.

SpotCountyMineralsCoordinatesAccess
Iron PeakIron County37.9125, -112.6907Public

Andesite rockhounding FAQ

Where is the best place to find andesite in the U.S.?+
Utah have the highest concentrations of andesite in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many andesite rockhounding spots does RockHoundR track?+
1 mapped spots across 1 states. The app keeps these on a map alongside your private finds.
Can I legally collect andesite on public land?+
Casual hand collecting of common rocks and minerals like andesite is allowed on most BLM and U.S. Forest Service land, with daily and annual limits set by the local field office. National parks, most state parks, and tribal land are off-limits. Always check with the managing agency before a trip.
How do I identify andesite in the field?+
Field identification of andesite comes down to color, hardness, fracture, and luster. The RockHoundR app links to geology details for each spot to help narrow down what you might be picking up.

Hunt andesite on the map

Open RockHoundR to see these spots on a real map with public land overlays and trip-planning details.

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