MO Missouri Porch

Foraging & Collecting

Rocks, minerals, fossils & geodes (and metal detecting)

Missouri is good rockhounding country, but where matters as much as what. The same rock can be yours to keep on one piece of ground and off-limits on the next, so the safe habit is to know whose land you're on before you fill a bucket.

Missouri's state symbols

The three rocks every Missourian should know

State mineral

Galena (lead ore) — Missouri's state mineral, from the old 'Lead Belt.'

State rock

Mozarkite — the state rock, a pink-and-purple chert found around Benton County.

State fossil

Crinoid — the state fossil, the 'sea lily' segments you find in limestone.

Geodes and pay-to-dig sites

The Keokuk geode region in northeast Missouri (near the Iowa and Illinois line) — round rocks that are hollow and crystal-lined inside. Several pay-to-dig sites operate there.

Pay-to-dig sites let you collect for a ticket — but call ahead to check hours, rules, and fees before you make the drive.

Where you can collect

Collect rocks, minerals, and common fossils on private or pay-to-dig land (with permission) and on Mark Twain National Forest — surface only, in reasonable personal amounts, with no motorized gear or sluice boxes, and not in wilderness, caves, or historical/archaeological areas.

Leave it where it lies

Where rocks and fossils are off-limits

Rock and fossil collecting is prohibited on state parks, conservation areas, Natural Areas, Corps lakes, and NPS land.

Gold panning

Gold panning is gold-pans-and-gardening-trowels only, in active stream channels or unvegetated gravel bars — no dredges or sluice boxes, and no claims. (The forest knows of no gold ever found in its streams; it's a novelty.)

Metal detecting

The rules change with the land

Metal detecting follows the same idea as everything else here: whose land you're on decides what you may do. On Corps of Engineers lakes the rule is set project office by project office, so call the project office first. And on every kind of public land the rule is the same — if you turn up an arrowhead, a relic, or anything that looks historic, you never keep an artifact: photograph it, leave it, and report it.

Private land

With the owner's permission.

State parks

Designated swim beaches only, at listed parks, with free annual registration and tool-size limits.

Conservation areas & Natural Areas

No — no ground disturbance.

Corps lakes

Only in designated or previously disturbed areas — call the project office first.

Federal land generally

Never where it disturbs history; national parks are generally off-limits; never keep an artifact.

Before you gather

Missouri Porch explains; the landowner and the land manager decide.

Last checked: 2026-06-18. Rules differ by land type and change over time — and eating a wild plant or mushroom is a health decision, not a website decision. When in doubt, ask the land manager, check a field guide, and don't eat anything you can't name with certainty.

This is a plain-English summary, not legal advice. Foraging and collecting rules change and depend on whose land you're on and what you're taking — always confirm with the landowner or land manager before you gather. For a suspected poisoning, call Poison Control at 1-800-222-1222 or 911.

Heads up: The same rock can be legal to keep on one piece of ground and off-limits on the next. When you're not sure, ask the land manager — and on public land, an artifact is never yours to keep.

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