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Where to Find Lake Superior Agate in Iowa

Iowa has 7 mapped collecting spots that report lake superior agate, spread across 6 counties. The largest share sits in Des Moines County with 2 spots. 6 of the spots are on land mapped as publicly accessible.

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Every lake superior agate spot we track in Iowa

Standout lake superior agate spots in Iowa

Hand-picked from the full list above, with the reason each one earns a trip.

Best counties for lake superior agate in Iowa

Ranked by the number of mapped lake superior agate spots. County links open the full rockhounding page for that county.

Before you go

Read the lake superior agate identification guide so you know what a keeper looks like in the field: Lake Superior Agate in the encyclopedia.

Lake Superior Agate in Iowa FAQ

Where can you find lake superior agate in Iowa?+
The mapped spots concentrate in Des Moines County, Butler County, and Dubuque County. Every spot on this page is on the map, and each spot's own page has its coordinates and access notes.
How many lake superior agate spots are mapped in Iowa?+
7 spots across 6 counties. The RockHoundR app keeps the same spots on an offline map with public land overlays, geology layers, and your saved finds.
Is it legal to collect lake superior agate in Iowa?+
Hand collecting of common rocks and minerals in small amounts for personal use is generally allowed on BLM and U.S. Forest Service land, with limits set by the local field office. National parks, most state parks, and tribal land are closed to collecting. 6 of the 7 mapped spots here sit on land marked public. Always confirm current rules with the managing agency before you dig.

Where else to find lake superior agate

More minerals to hunt in Iowa

Hunt lake superior agate in Iowa with the map in your pocket

RockHoundR puts these spots on an offline map with BLM and Forest Service overlays, geology layers, and a log for your finds.

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