Where to Find Silicified Algae in the United States

1 mapped silicified algae spots across 1 U.S. states. Silicified Algae 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 silicified algae: properties & identification →

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

Top states for silicified algae

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

Every silicified algae spot we track

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

SpotCountyMineralsCoordinatesAccess
Blacks Fork CreekUinta County41.5683, -110.1414Public

Silicified Algae rockhounding FAQ

Where is the best place to find silicified algae in the U.S.?+
Wyoming have the highest concentrations of silicified algae in this list. Each state's quality and access varies — open the linked state pages for a detailed view.
How many silicified algae 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 silicified algae on public land?+
Casual hand collecting of common rocks and minerals like silicified algae 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 silicified algae in the field?+
Field identification of silicified algae 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 silicified algae 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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