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Idaho rockhounding: who owns the ground

Last verified November 2, 2026. Every rule below links to the page that explains it, with sources.

Looking down into the deep, steep-walled Bruneau River canyon cut through Owyhee desert plateau at sunset — The Bruneau River canyon in the Owyhee country of southwest Idaho, BLM land with wilderness nearby. Check the overlay before you pick anything up. Photo: Bureau of Land Management, CC BY 2.0, via Wikimedia Commons

The BLM manages nearly 12 million acres in Idaho, about 22 percent of the state, and BLM counts more than 40,000 active mining claims here. Seven national forests are based in Idaho. Mixed in are state endowment trust lands, state parks and Fish and Game wildlife areas, Craters of the Moon, Hagerman Fossil Beds and City of Rocks, refuges, reservations and private ranches. The star garnet is the state gem (Idaho Code 67-4505), and the most famous place to find one runs on reservations.

Cover of the Idaho Land-Status Field Guide for Rockhounds, 2026 edition

Idaho land types at a glance

BLM public land — yes, reasonable amounts. BLM Idaho treats rockhounding as casual use that can be done “without a permit or fee”: hand tools or metal detectors, minor disturbance, personal use, reasonable amounts. Petrified wood: 25 lb plus one piece a day, 250 lb a year. Not on active claims without permission, or in developed recreation sites. Idaho BLM rules
National forests — small amounts. Forest Service guidance: “a reasonable amount is up to 10 pounds,” and surface collecting for personal use needs no permit. Salmon-Challis says rockhounding is prohibited in the Frank Church–River of No Return and Jim McClure–Jerry Peak Wildernesses.
Emerald Creek star garnets — ticket only. Reservation through Recreation.gov, 2 lb per person per day, one permit per person per year. The Forest Service says the site closed early in 2026. Emerald Creek
IDL endowment trust land — ask. IDL's rockhounding page says these lands are “open to casual exploration for gemstones and mineral specimens” unless under a valid exploration location or mineral lease, but IDL's recreation policy says “collecting valuable rocks or minerals” needs separate IDL authorization. State lands and parks
State parks and Fish and Game lands — no. IDAPA 26.01.20.175.09 prohibits removing natural resources from parks; IDAPA 13.01.03 bars disturbing or removing soils, gravel or minerals on IDFG land unless authorized. Details
National parks, monuments and reserves — no. Craters of the Moon, Hagerman Fossil Beds and City of Rocks (36 CFR 2.1). Parks, monuments and refuges
Refuges and Reclamation land — no. 50 CFR 27.61 and 43 CFR 423.29. Refuges
Tribal and private land — permission only. Idaho Code 18-7008 defines “permission” as written authorization signed by the owner or agent. Artifacts stay where they lie.

Idaho articles

Idaho BLM rockhounding rules

Casual use in BLM Idaho's own words, petrified wood and fossil limits, claims, WSAs and dredging.

Photo: Bureau of Land Management, CC BY 2.0, via Wikimedia Commons

Vintage postcard from about the 1960s showing people digging for star garnets along Emerald Creek near Fernwood, Idaho

Emerald Creek star garnets

The ticketed Forest Service garnet site: reservations, fees, the 2 lb limit and the 2026 early closure.

Photo: Steve Shook, CC BY 2.0, via Wikimedia Commons

Weathered granite spires rising above sagebrush and juniper at Castle Rocks State Park, Idaho

Idaho state lands and parks

IDL endowment land's two answers, state parks, Fish and Game lands and the IDL gem localities.

Photo: Daniel Schwen, CC BY-SA 4.0, via Wikimedia Commons

Black lava field with sagebrush and a cinder butte at Craters of the Moon National Monument and Preserve, Idaho

Idaho parks, monuments, refuges

Craters of the Moon, Hagerman Fossil Beds, City of Rocks, refuges and Reclamation land.

Photo: dwhartwig, CC BY 2.0, via Wikimedia Commons

Places the agencies themselves list

Emerald Creek Garnet Area (Idaho Panhandle NF), south of St. Maries: ticket, fee, 2 lb a day. Details
IDL's gemstone localities: Challis, Owyhee County (including Succor Creek), Weiser and Emmett. IDL lists the localities; it does not say who owns each one. Details
Spencer Opal Mine near Spencer: listed by IDL as “private – fee charged.” Any arrangement is with the owner.

A listed locality is not permission. Check each parcel for claims, private and state sections, and closures before you go.

Before any Idaho trip

Click the parcel on an official surface-management layer and write down township, range and section (Boise Meridian).
Check overlays: wilderness, WSA, wild and scenic river, the Sawtooth NRA, a monument, a campground or other developed site, fire closure.
Run MLRS for active claims, and look for posts and notices. On state land, ask IDL about exploration locations and leases.
If a site needs a ticket, reserve it from the agency first. Tickets and passes are bought from the agency, separately.
Weigh what you take and log it. Hand tools only. Nothing for sale. Leave every artifact.

Rockhound Kids: a 23-page printable coloring pack for ages 4–10, with obsidian, sunstone, geodes and desert critters of the West. $4.99.

Sources: BLM Idaho, What We Manage; BLM Idaho, Minerals; 43 CFR 8365.1-5; 43 CFR 3622; USDA Forest Service rockhounding guidance; Salmon-Challis NF, Geology; Idaho Panhandle NF, Emerald Creek Garnet Area; IDL, Rockhounding; IDL, Recreation policy; IDAPA 26.01.20; IDAPA 13.01.03; 36 CFR 2.1; 50 CFR 27.61; Idaho Code 18-7008; Idaho Code 67-4505. Details and more links on each article.

Other states: Utah · Nevada · Arizona · Oregon · Wyoming.

Informational only — not legal advice. Rules, boundaries and seasons change. Confirm with the managing agency for the exact parcel before you collect. Last verified November 2, 2026.

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