RocksdayRockhounding in Idaho
Idaho calls itself the Gem State, and the Idaho Department of Lands lists gem and mineral localities county by county. The famous dig is Emerald Creek in the panhandle, where the Forest Service supplies garnet-bearing gravel for visitors to sluice. State endowment land has its own, slightly muddled rules, which is why this guide quotes both of the Department's statements.
This guide is for general education only. It is not legal advice. Collecting rules change and differ by parcel. Before you dig, confirm land ownership and current regulations with the land manager (BLM, US Forest Service, state lands, state parks, or the fee-dig operator). National Park Service units generally prohibit collecting. Respect mining claims, tribal lands, and private property — when in doubt, do not collect. Last verified 2026-10-28.
Where to dig in Idaho
Only sites whose land manager or operator publishes them for collecting. For recorded mineral occurrences across Idaho, see the rockhounding map; an occurrence is not permission to collect.
Emerald Creek Garnet Area
Public collecting area · Forest Service, Idaho Panhandle National Forests
Visitors do not dig in the ground here. The Forest Service provides a stockpile of garnet-bearing gravel to run through one of two sluice boxes, and supplies the tools: leave personal sifters, shovels and buckets at home.
Finds: Garnet
Access: Reservation only through recreation.gov, no walk-up permits: adults $15, children 6 to 12 $5, under 6 free, plus a $1 processing fee. Limit of 2 pounds of garnet per person and one permit per person per year. The Forest Service page says both that the area closed early in 2026 for lack of excavated material and that it is now open by reservation only, so confirm the status first. From St. Maries, Highway 3 south 24 miles to Road 447, southwest 7 miles to the parking area, then a half-mile hike up the gated road.
Access and fees can change. Verify on the manager's official page before you go.
Idaho rules
Idaho state endowment land
The Idaho Department of Lands says all state endowment trust lands are open to casual exploration for gemstones and mineral specimens, provided the land is not under a valid exploration location or mineral lease. Its 2025 recreation policy, however, lists collecting valuable rocks or minerals among activities that are not general recreation, which need separate authorization from the Department. The two statements are not reconciled, so ask the Department's field office before you collect.
Source: Rockhounding (including Rockhounding on State Endowment Trust Land); Policy 2205: Recreational Use of State Endowment Lands (Nov. 10, 2025)
Federal land rules that apply in Idaho
The same federal regulations apply in every state. The full explanation is on rockhounding rules on public land.
Bureau of Land Management land
On BLM public land you may collect reasonable amounts of rocks, mineral specimens and semiprecious gemstones for noncommercial purposes, generally without a permit. This does not apply on developed recreation sites, in areas that are closed and posted, where there are active mining claims or other authorized mineral uses, or where the mineral estate is privately owned. BLM can close or limit collecting in specific areas through its land use plans.
- Noncommercial only: the collector is not selling the items for a business or financial gain.
- No explosives, motorized or mechanical devices to aid collecting, except metal detectors.
- A permit may be needed if you use certain equipment, cause more than negligible surface disturbance, or camp longer than the posted limit.
Source: 43 CFR § 8365.1-5, Property and resources; Public Collection of Rocks, Mineral Specimens, and Semiprecious Gemstones on Public Lands for Noncommercial Purposes: FAQ (Feb. 28, 2024)
BLM national monuments and wilderness
Collecting reasonable amounts for noncommercial purposes is generally allowed on BLM land inside national monuments and wilderness areas, except for rocks and minerals that a monument's proclamation, law or plan names as monument objects. In designated wilderness you may use non-motorized hand tools only, with minimal surface disturbance.
Petrified wood on BLM land
BLM land is open to free collecting of petrified wood unless a Federal Register notice says otherwise, within fixed weight limits, for personal use only.
- Up to 25 pounds plus one piece per person per day.
- No more than 250 pounds per person per calendar year; quotas may not be pooled.
- No explosives or power equipment.
- It may not be sold or bartered to commercial dealers.
Fossils on BLM and National Forest land
Casual collecting covers common invertebrate and plant fossils only: a reasonable amount for personal, noncommercial use, picked from the surface or dug with non-powered hand tools, with negligible disturbance. It is allowed on BLM land and National Forest land that is not closed to it. National monuments within the National Forest System are closed. Fossils outside that definition, such as vertebrate bones and teeth, need a permit.
- BLM: up to 25 pounds of common invertebrate and plant fossils per person per day; a larger slab may be taken with hand tools to keep an embedded fossil intact.
- Fossils from National Forest land may not be sold, including casually collected ones.
- No casual collecting of any fossil on National Park Service or Fish and Wildlife Service land.
Source: 43 CFR §§ 49.800–49.810, Casual collecting of paleontological resources; 36 CFR §§ 291.11–291.12, Casual collecting on National Forest System lands
National Forest land
Forest Service mining rules list collecting mineral specimens with hand tools, gold panning, metal detecting and non-motorized hand sluicing among activities that need no notice of intent when they cause no significant surface disturbance. Forest Service rules also prohibit damaging or removing any natural feature, and individual forests set their own closures, so ask the ranger district before you collect.
Source: 36 CFR § 228.4, Plan of operations and notice of intent (National Forest mining rules); 36 CFR § 261.9, Property (National Forest prohibitions)
National parks and other NPS units
National Park Service rules prohibit possessing, removing or disturbing minerals, rocks, cave formations and fossils in park areas. Possessing or using a metal detector is prohibited too, unless it is broken down and packed away.
Source: 36 CFR § 2.1, Preservation of natural, cultural and archeological resources (National Park Service)
Mining claims
BLM says collecting is generally not allowed where there are active mining claims. Claim boundaries are not always marked on the ground, and some designated collecting areas have private claims around or inside them. Search the BLM Mineral & Land Records System, or ask the field office, before you dig.
Source: Public Collection of Rocks, Mineral Specimens, and Semiprecious Gemstones on Public Lands for Noncommercial Purposes: FAQ (Feb. 28, 2024); Sunstone Collection Area; Mineral & Land Records System (MLRS)
Artifacts and historic sites
Removing or disturbing archaeological, historic or cultural resources is prohibited on BLM, National Forest and National Park land. Leave arrowheads, tools and old structures where they are.
Source: 43 CFR § 8365.1-5, Property and resources; 36 CFR § 261.9, Property (National Forest prohibitions); 36 CFR § 2.1, Preservation of natural, cultural and archeological resources (National Park Service)
Collecting to sell
Collecting from BLM land for sale or barter to commercial dealers requires a contract or permit from the BLM first.
Abandoned mines, desert heat, flash floods, and wildlife are real hazards. Share a trip plan, carry water, and never enter unstable workings.
Rockhounding in Idaho FAQ
What can you find rockhounding in Idaho?
At the sites in this guide, the land managers list garnet.
Where can you rockhound in Idaho?
This guide lists one site that land managers or operators publish for collecting: Emerald Creek Garnet Area (public collecting area).
Can you rockhound on Idaho state land?
It depends whom you ask at the Department of Lands: its rockhounding page says state endowment land is open to casual exploration for gemstones and mineral specimens unless leased or claimed, but its 2025 policy lists collecting valuable rocks or minerals as needing separate authorization. Ask the local field office.
Sources
We cite primary sources (federal regulations, state rules, and land-manager sites). Third-party listicles are not used as citations.
- Emerald Creek Garnet Area — USDA Forest Service, Idaho Panhandle National Forests (accessed 2026-10-28).
- Rockhounding (including Rockhounding on State Endowment Trust Land) — Idaho Department of Lands (accessed 2026-10-28).
- Policy 2205: Recreational Use of State Endowment Lands (Nov. 10, 2025) — Idaho Department of Lands (accessed 2026-10-28).
- 43 CFR § 8365.1-5, Property and resources — Electronic Code of Federal Regulations (accessed 2026-10-28).
- Public Collection of Rocks, Mineral Specimens, and Semiprecious Gemstones on Public Lands for Noncommercial Purposes: FAQ (Feb. 28, 2024) — Bureau of Land Management (accessed 2026-10-28).
- 43 CFR § 3622.4, Petrified wood collection rules — Electronic Code of Federal Regulations (accessed 2026-10-28).
- 43 CFR §§ 49.800–49.810, Casual collecting of paleontological resources — Electronic Code of Federal Regulations (accessed 2026-10-28).
- 36 CFR §§ 291.11–291.12, Casual collecting on National Forest System lands — Electronic Code of Federal Regulations (accessed 2026-10-28).
- 36 CFR § 228.4, Plan of operations and notice of intent (National Forest mining rules) — Electronic Code of Federal Regulations (accessed 2026-10-28).
- 36 CFR § 261.9, Property (National Forest prohibitions) — Electronic Code of Federal Regulations (accessed 2026-10-28).
- 36 CFR § 2.1, Preservation of natural, cultural and archeological resources (National Park Service) — Electronic Code of Federal Regulations (accessed 2026-10-28).
- Sunstone Collection Area — Bureau of Land Management (accessed 2026-10-28).
- Mineral & Land Records System (MLRS) — Bureau of Land Management (accessed 2026-10-28).
Last verified 2026-10-28. Corrections welcome: if a rule or site has changed, tell us and we'll re-verify.