Rockhounding in Johnson County, Iowa

1 mapped rockhounding spot in Johnson County. Most commonly produces calcified coral, silicified coral.

Map showing 1 rockhounding spot in Johnson County, Iowa

Minerals reported in Johnson County

Spots in Johnson County

SpotMineralsCoordinatesAccess
CoralvilleLL Pelling Road41.6883, -91.6242Public

Other rockhounding counties in Iowa

Johnson County FAQ

Where can I rockhound in Johnson County, Iowa?+
RockHoundR tracks 1 rockhounding spot in Johnson County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Johnson County?+
Spots in Johnson County most often produce Calcified Coral, Silicified Coral. Individual spots can vary widely.
Are these Johnson County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Johnson County rockhounding trip

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