Cedar Rapids — Rockhounding in Linn County, Iowa

Cedar Rapids is a mapped rockhounding spot in Linn County, Iowa. Reported finds include silicified coral, calcified coral. Below: coordinates, access notes, nearby spots, and trip-planning links.

Quick details

Access: Public area
County: Linn County
State: Iowa
Nearest road: 29th Ave Dr SW
Postcode: 52404
Coordinates: 41.94186, -91.65122

Land & collecting status

Generally open to casual rockhounding

Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.

Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.

Sources & verification

Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.

Sources: RockHoundR public spot dataset, app land overlays, and local agency review before each trip.

Found at Cedar Rapids

Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.

Silicified CoralEncyclopedia →
Calcified CoralEncyclopedia →

Nearby rockhounding spots

Other rockhounding spots within driving distance of Cedar Rapids.

Across the state line from Cedar Rapids

Cedar Rapids is close enough to the Iowa border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.

Cedar Rapids FAQ

Where is Cedar Rapids?+

Cedar Rapids is in Linn County, Iowa, at 41.94186, -91.65122. Nearest road: 29th Ave Dr SW.

What rocks and minerals can you find at Cedar Rapids?+

Cedar Rapids is reported to produce Silicified Coral, Calcified Coral.

Is collecting allowed at Cedar Rapids?+

Generally open to casual rockhounding. Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig. Always confirm current rules with the managing agency before a trip.

How do I get to Cedar Rapids?+

Open the directions link to navigate to 41.94186, -91.65122 in Google Maps. The nearest road is 29th Ave Dr SW.

More rockhounding in Iowa

See all 49 Iowa spots →

Open Cedar Rapids on the map

Use the RockHoundR app for live land overlays, weather, geology, directions, and saved finds.