Outdoor Hobby Regulations · Verified from Official Sources
Collecting rocks, minerals, gems, and crystals on public land for personal use. The federal casual-use rule allows up to 25 lbs per day on BLM land without a permit — but active mining claims, wilderness designations, and state park rules can override this. Each guide covers the exact regulations for a specific site.
Verified locations
Rockhounding is allowed on BLM land surrounding Alamo Lake — 25 lb/day casual collection, hand tools only. Collecting is prohibited within Alamo Lake State Park and the Bill Williams River National Wildlife Refuge; know the boundaries before you dig.
Casual rockhounding is allowed at the Black Hills BLM area in western Arizona without a permit. White opalite, geodes, and jasper are the primary targets; the 25-lb daily collection limit applies; hand tools only; avoid May through September due to extreme Mohave Desert heat.
Placer gold and almandine garnet collecting are allowed on Prescott National Forest land at Lynx Creek under USFS personal-use rules (36 CFR § 228). No permit required; no daily weight limit for recreational personal-use quantities. Active and historic mining claims overlay much of the drainage — verify open ground in the BLM LR2000 database before each visit.
Garnet Hill near Ely, Nevada is one of the most accessible free rockhounding sites in the Great Basin — an exposed rhyolite flow studded with red almandine garnets that can be collected by the bucketful with no permit for personal use. BLM personal-use collection rules allow up to 25 pounds per day, 250 pounds per year. Garnets are found loose in the soil and matrix throughout the designated fee-free collection area managed by the BLM Ely District.
Recreational rockhounding is allowed on BLM land surrounding Rye Patch Reservoir at 25 pounds per day under 43 CFR § 8365.1-5. Do not collect within Rye Patch State Recreation Area, where removing natural materials is prohibited under Nevada law.
Free opal collecting at Virgin Valley BLM: 25 lb per day limit. Most productive ground is on private fee-dig claims — confirm the BLM boundary before digging.
Glass Buttes is open BLM land in the Oregon high desert where four varieties of obsidian — including rare fire obsidian — lie on the surface for personal-use collecting. The 25 lb/day limit applies. The catch most visitors don't expect: the site was a major Native American quarry for 10,000 years, and worked obsidian pieces are protected under ARPA regardless of how natural they look.
Hampton Butte is an open BLM site in Deschutes County where surface collection of picture jasper — including dendritic and landscape-pattern varieties — is allowed under the 25 lb/day personal-use limit. Most visitors driving US-20 stop at Glass Buttes for obsidian; those who continue past Hampton find different material entirely.
Free collecting at the BLM Oregon Sunstone public area near Plush allows approximately 1 lb/day of sunstones — well below the standard BLM 25 lb/day casual-use limit. Adjacent private fee-dig claims have no daily limit.
Rockhounding is free at Dugway Geode Beds on open BLM land with a 25 lb/day personal-use limit under 43 CFR § 8365.1-5. Tunneling is explicitly prohibited — collect from existing excavations. Remote access via Pony Express Road; no services on site.
Topaz crystals are free to collect at Topaz Mountain in the Thomas Range, Utah, under a 7.5-pound-per-day topaz-specific limit — lower than the standard BLM 25-pound rule. Crystals irreversibly fade from sherry-orange to colorless within minutes of UV exposure; wrap them immediately on recovery.
Rules & regulations
Most rockhounding in the US happens on Bureau of Land Management land — 245 million acres across the western states, the majority of which allows personal-use collection of rocks, minerals, and gemstones without a permit. The rule is straightforward: 25 lbs per person per day, for personal non-commercial use, on open BLM land. No registration, no fee.
The complications are the exceptions — and there are enough of them that knowing the baseline rule isn't enough on its own. Mining claims look identical to open BLM land from the road. State parks prohibit collecting almost universally. National parks prohibit it entirely. And on any federal land, vertebrate fossils (bone, teeth, tracks) are separately regulated under federal law regardless of how common or small they look.
| Land type | Collecting allowed? | Daily limit | Key caveat |
|---|---|---|---|
| BLM land (open) | Yes | 25 lbs/day, 250 lbs/year | Active mining claims exclude personal-use rights |
| National Forest (USFS) | Generally yes | 25 lbs/day (typical) | Check individual forest plan; some areas restricted |
| National Park (NPS) | No — prohibited | None | 36 CFR § 2.1; no exceptions |
| State parks | Mostly no | None | Varies; most states prohibit collection in parks |
| State BLM / public land | Varies by state | Varies | Check state-specific rules; some states have separate limits |
| Private land | Owner permission only | N/A | No public collecting right |
Based on 43 CFR Part 3600 (BLM), 36 CFR (NPS/USFS), and general state park frameworks as of 2026. Individual sites may have additional restrictions — check the specific location page.
Mining claims are invisible — and they override personal-use rights
Approximately 350,000 active mining claims exist on BLM land across the western states. A staked claim gives the claim holder exclusive mineral rights over that parcel — personal-use collecting rules don't apply inside an active claim, even if the land looks like open desert with no signs.
Claim markers (metal stakes, rock cairns, posted notices) aren't always obvious, and the BLM doesn't mark claim boundaries on standard recreation maps. Before any serious collecting trip to BLM land, check the BLM LR2000 database for active claims in your target area. It's free to search and shows all recorded claims by location.
Vertebrate fossils: a separate rule that applies everywhere
The Paleontological Resources Preservation Act (PRPA, 2009) prohibits casual collection of vertebrate fossil material on all federal land — BLM, NPS, USFS, and others. This is separate from the mineral collecting rules.
In practice: you can collect a bucket of agate or brachiopod shells on BLM land legally. You cannot collect a dinosaur tooth, a fish scale, or any bone fragment regardless of size or how common it looks. If you find vertebrate material, leave it and report it to the local BLM field office.
Common questions
