Wyoming is a federal-land state with real, documented gold: a greenstone belt at South Pass that fed the state’s first gold rush, and a Tertiary-intruded greenstone fragment in the Rattlesnake Hills that now carries a published resource. This page is for claim holders, small mining companies, exploration teams and consultants. It covers the districts, the federal claim and state lease rules that decide who may explore, the permits that apply, and where satellite screening is most useful in Wyoming’s open, semi-arid terrain.
Key districts South Pass, Rattlesnake Hills
Federal land 47.7% of the state
Audience Claim holders, explorers, consultants
Anyone researching gold deposits in Wyoming usually meets two very different stories. One is historic: placer gold on the Oregon Trail in the 1840s and a lode rush at South Pass in 1867. The other is current: a district-scale target in the Rattlesnake Hills with a 2024 resource estimate, and a state geological survey that keeps pointing explorers back to old mining districts. What connects them is ground. With nearly half the state in federal hands, the first practical question is whether a given square mile is open to claims, leasable from the state, or privately owned.
Try it: Wyoming claim versus state lease holding cost →
Gold deposits in Wyoming also reward a certain kind of screening. Much of the gold country is sagebrush steppe or mountain slope with good rock exposure, which is better for remote sensing than the forested eastern states. That helps if you are choosing where to place claims quickly, because under the 1872 Mining Law the first person to stake open ground gets it. Satellite analysis fits the early, cheap part of that decision: which claims are worth the first-year fee, and which are not.
“The first Wyoming gold rush began in 1867 with the discovery of the Carissa lode, and by 1869 South Pass, Atlantic City and Miners Delight held more than 2,500 people.”
The Wyoming State Geological Survey (WSGS) says total gold production from Wyoming is unknown because no records were kept and few estimates were made before about 1900 (WSGS: Gold). That matters for anyone building a thesis on historic output. Treat every district total as an estimate, and spend your effort on structure and geology that you can check yourself.
Who controls the ground under gold deposits in Wyoming
Wyoming has a very large public land base, and that shapes every search for gold deposits in Wyoming. The Congressional Research Service reports that five federal agencies administered 29,710,191 acres of Wyoming as of 30 September 2024, which is 47.7% of the state’s 62,343,040 acres (CRS, Federal Land Ownership: Overview and Data). That share is far above the 2.1% to 10.0% federal presence in Pennsylvania, South Carolina, Tennessee, Wisconsin, South Dakota, Minnesota and Michigan, according to the same report. For gold deposits in Wyoming, it means most exploration starts with the Bureau of Land Management (BLM), the Forest Service or the state land office, not with a landowner.
Three ownership layers matter, and each has its own door. Open federal public domain can be claimed under the Mining Law. State trust lands, mostly school sections, are leased by the state under its own rules. Private land needs the owner’s permission, and the minerals may or may not travel with the surface. A fourth layer is anything withdrawn or closed to mineral entry, such as wilderness or national parks, where neither claims nor leases are available. Always check which layer a target sits in before commissioning any work.
A strong spectral anomaly on a section of private ground, a wilderness study area or a split-estate parcel may be impossible to acquire. Overlay land status, withdrawals and existing claims first, then rank what is left. That one step saves more money than any later optimisation.
South Pass and Atlantic City: the greenstone belt that hosts historic gold deposits in Wyoming
The WSGS describes the South Pass-Atlantic City and Lewiston districts as a greenstone belt forming a synclinorium of metamorphosed sedimentary, volcanic and plutonic rocks, intruded by granitic plutons. Gold occurs mainly in foliation-parallel shear zones with quartz, sulphides, carbonates and wallrock alteration. The survey sees potential for large-tonnage, low-grade mineralisation and for small undiscovered high-grade deposits (WSGS: Wind River Range and South Pass). It cites an estimate that as much as 334,000 ounces were mined from the district, and notes widespread placer and paleoplacer gold nearby.
The history of gold deposits in Wyoming is unusually well dated for the American West. Travellers on the Oregon Trail reported placer gold near the Sweetwater River around 1842, but the WSGS notes that hostilities prevented serious prospecting until the 1860s. The Carissa lode was found in 1867, and by 1869 the three settlements counted over 2,500 residents. The WSGS puts Carissa production between 50,000 and 180,000 ounces before 1911 (WSGS: Gold). Other districts organised in the same era include Lewiston, Centennial Ridge, Douglas Creek, Gold Hill, Keystone and New Rambler in the Medicine Bow Mountains, the Seminoe Mountains, Copper Mountain and Mineral Hill in the Black Hills.
For a modern explorer working on gold deposits in Wyoming, the useful detail is in the WSGS Geo-notes: the survey’s mapping of the South Pass greenstone belt found evidence of several hidden shear zones in the Crow’s Nest and Lewiston areas that had never been explored. One was a gold-bearing shear under a thin eluvial cover, recognisable by chips of chloritised, hematitised metagreywacke in the soil, and exposed by a single backhoe trench (WSGS Geo-notes 67, 2000). That is a satellite-friendly story, because iron-staining and chlorite alteration are spectrally readable where cover is thin.
Rattlesnake Hills: a different style among the gold deposits in Wyoming
Central Wyoming’s Rattlesnake Hills are, per the WSGS, a partially exposed fragment of a synformal Archean greenstone belt intruded in the Tertiary by alkalic volcanic rocks. The survey found anomalous gold in pyrite-rich metachert in 1982. Hausel recognised at least three episodes of mineralisation: syngenetic stratabound exhalative, epigenetic, and disseminated epithermal gold tied to the Tertiary volcanics. Company work between 1983 and 1993 suggested a large amount of disseminated low-grade gold, thought to exceed one million ounces, and Evolving Gold later drilled and evaluated 252,000 feet (76,800 metres) of core (WSGS: Rattlesnake Hills).
That drilling led to a published estimate. A news release dated 15 October 2024 reports a maiden resource at the Rattlesnake Hills project in Natrona County: 24,857 thousand tonnes at 0.77 g/t gold for 612,000 ounces indicated, and 19,626 thousand tonnes at 0.69 g/t for 432,000 ounces inferred, using cut-offs of 0.2 g/t in pit and 1.5 g/t out of pit. It was prepared by APEX Geoscience (Axcap news release). These are company figures from one project, not a state-wide total of gold deposits in Wyoming.
Indicated and inferred ounces carry a cut-off grade, a pit shell and assumptions that a satellite analysis cannot reproduce. The land at Rattlesnake Hills is already controlled by an operating company. Use the example for the geology it shows, a Tertiary-intruded greenstone with disseminated gold, not as a map of free ground.
| District | Geology (WSGS) | What it teaches for gold deposits in Wyoming screening |
|---|---|---|
| South Pass-Atlantic City and Lewiston | Archean greenstone belt; gold in foliation-parallel shear zones with quartz, sulphides, carbonates | Look for shear corridors and alteration; hidden shears may sit under thin cover |
| Rattlesnake Hills | Archean greenstone fragment intruded by Tertiary alkalic volcanics; three mineralising episodes | Mixed ages and styles; geophysics and geochemistry matter as much as imagery |
| Medicine Bow Mountains (Centennial Ridge, Gold Hill and others) | Historic districts organised in the 1860s and 1870s | Old mine workings are often the best place to begin, per the WSGS |
| Black Hills and Bear Lodge area | Listed by the WSGS among its gold districts, with Mineral Hill historic | Check the WSGS district pages for details before committing |
The federal route to gold deposits in Wyoming: claims, fees and the 90-day clock
Where federal land is open, a locatable mineral claim is the way in. The BLM says a lode claim may not exceed 1,500 feet in length and 600 feet in width, which is about 20.66 acres, and that a placer claim is limited to 20 acres per locator (BLM mining claims). Claims must be recorded with the BLM state office within 90 days of location and also with the county, according to the county’s own requirements (BLM: recording a claim). In Wyoming the statute requires the location certificate to be recorded with the county clerk within ninety days of discovery, and a certificate missing the required contents can be void (Wyoming Statutes Title 30).
The money is straightforward. For new claims filed on or after 1 September 2024 the BLM lists a $25 processing fee, a $49 location fee and a $200 maintenance fee for a total of $274 per lode claim, and the maintenance fee repeats each year. A claimant who, with all related parties, owns 10 or fewer claims nationwide can apply for a maintenance fee waiver instead (BLM mining claim fees). County recording fees are separate and vary, so ask the county clerk.
Why does the comparison matter? Because for gold deposits in Wyoming the federal cost scales with claim count, and claims are sized in a fixed shape. A narrow shear corridor that fits one claim costs $274 in year one. A diffuse, low-grade target that needs twenty claims costs $5,480 before any work, and $4,000 every year after. Screening the ground first lets you stake the corridor and skip the filler, which is where early-stage budgets usually leak.
Investors reading a project summary should look for how many claims it holds, the annual fee bill, and whether the claimant uses the small-miner waiver. A package of dozens of claims with no recent work can be a liability rather than an asset. General information, not investment advice.
State land: metallic mineral leases over gold deposits in Wyoming
On Wyoming state trust lands, minerals are leased, not claimed. Chapter 24 of the Board of Land Commissioners’ rules covers metallic and non-metallic mineral leasing. Leases go to the first qualified applicant, with applications filed with the Office of State Lands and Investments, and simultaneous filings are resolved by sealed bid. The first year’s advance rental accompanies the application with a non-refundable filing fee set elsewhere in the board’s rules. Corporations must be authorised to do business in Wyoming by the Secretary of State. The primary term is ten years (Board of Land Commissioners, Chapter 24).
Rent is modest: $1 per acre for years one to five, then $2 per acre for years six to ten and for any renewal year in a second ten-year term, rising to $3 and $4 in later renewal terms. Royalty depends on sales value per ton, from 5% up to 7%, 9% and 10% for higher tiers, with a minimum of fifty cents per ton unless the board authorises something else. The board may reduce royalty once a lease is operating if that is needed to keep operations profitable. A lessee does not have to post a bond until actual operations, including exploration, are about to start, and must first outline the operations to the office.
Wyoming claim versus state lease holding cost
Assumptions: BLM fees for new lode claims filed on or after 1 September 2024 (US$25 processing, US$49 location, US$200 maintenance, US$274 total in year one, US$200 a year after), a lode claim area of 20.66 acres, and the state rent schedule in Board of Land Commissioners Chapter 24 (US$1, then US$2, US$3 and US$4 per acre by ten-year term). With the waiver, the calculator charges only processing and location fees in year one and nothing after. It excludes county recording fees, state filing fees, assessment work or affidavit fees, royalties and bonds. Fees change, so check the BLM and the Office of State Lands and Investments.
Exploration permits: BLM notices, state licenses to explore and the acreage lines
Holding ground over gold deposits in Wyoming is only half of it. Disturbing it needs approval, and Wyoming layers a state licence on top of the federal rules. On federal land, the BLM’s surface management rules treat hand-tool collecting and hand panning as casual use. Exploration disturbing 5 acres or less needs a notice, and more than 5 acres, or bulk samples of 1,000 tons or more, needs a plan of operations. The BLM also warns that projects may not be split into a series of notices to avoid a plan (BLM surface management).
The Wyoming Department of Environmental Quality’s Land Quality Division runs a parallel track. Its guidance says that anyone exploring by dozing or trenching with motorised equipment, or using a suction dredge larger than 3 inches or 10 horsepower, must first obtain a License to Explore. Drilling can be authorised under the same licence. The licence application carries a $25 filing fee, a reclamation bond set by the division, and is issued for one year. If the programme will affect 40 acres or more within four contiguous sixteenth sections, a mining permit is needed instead. On federal land a joint bond is held, and a BLM plan of operations can double as the licence appendices (LQD Guideline 16).
One Wyoming-specific item in the LQD guidance is sage grouse. Guideline 16 has a separate section on sage grouse considerations, so a programme in sagebrush habitat may face seasonal or spatial limits, and it is sensible to check with LQD and the surface manager early. Applicants are also strongly encouraged to meet LQD district staff before submitting, and the guidance notes that the LQD does not keep land ownership records, so the applicant must show the right to explore.
What satellites can and cannot see over gold deposits in Wyoming
This is favourable terrain for remote sensing, and gold deposits in Wyoming benefit from it. South Pass and the Rattlesnake Hills are semi-arid, sparsely vegetated, and have large areas of bare soil and outcrop. Iron oxides, clays, sericite and chlorite alteration, which accompany shear-hosted and epithermal gold, are readable from multispectral and hyperspectral imagery when they are not hidden by cover. Structures also show: shear corridors, fold closures and contacts between greenstone and granite appear as lineaments and colour contrasts.
- ✔ Best case for gold deposits in Wyoming: exposed or thinly covered greenstone belts, where alteration minerals map directly. The WSGS hidden shear at South Pass, found from soil chips of chloritised, hematitised rock, is the kind of clue that spectral work can flag from orbit.
- ✔ Claim planning: ranking which parts of an open area are worth the $274 year-one claim fee, before staking.
- 📊 Combine with: WSGS geologic maps, airborne geophysics and soil geochemistry. The Rattlesnake Hills work used a 2016 airborne survey and core drilling together.
- ⚠ Limits: alpine slopes in the Wind River Range hold snow for much of the year, wind-blown cover can mute signatures, and basin sediments next to the greenstone belt need to be masked out so they are not read as alteration.
- ⚠ Placer caution: satellites do not detect placer gold. They can map the gravels, channels and source structures that may concentrate it.
Because Wyoming exploration rules contemplate sage grouse considerations, a remote screen that narrows the field work to a few high-value targets also reduces the days spent in sensitive habitat. Fewer, better-placed trenches mean less to reclaim and less exposure to seasonal closures.
Where to get data on gold deposits in Wyoming
Wyoming’s geological survey publishes unusually useful gold material. The WSGS gold page recommends Hausel’s 1989 WSGS Bulletin 68 on the geology of Wyoming’s precious metal lode and placer deposits and Hausel’s 2002 Information Pamphlet 9, Searching for Gold in Wyoming, and notes that old mines are often a good place to begin. A 2024 WSGS information pamphlet covers South Pass geology, and its 1:100,000 South Pass geologic map (Map Series 70) covers Atlantic City, South Pass City and Lewiston. The WSGS also keeps GIS mines and minerals layers and a mining districts section. For claims, the BLM’s Mineral and Land Records System shows what is filed.
| Question | Source | Note |
|---|---|---|
| What are the districts and structures? | WSGS mining district pages, Bulletin 68 and the South Pass geologic map | WSGS notes total state gold production is unknown |
| Is the land open to claims? | BLM and Forest Service land status; BLM MLRS | Federal land is 47.7% of the state per CRS 2024 |
| Where do I record a claim? | County clerk and the BLM state office | Both within 90 days per the statute and BLM |
| Can I lease state minerals? | Office of State Lands and Investments; Board Chapter 24 | First qualified applicant; ten-year primary term |
| What permits do I need to dig? | BLM field office; Wyoming DEQ Land Quality Division | 5-acre BLM line; 40-acre LQD line |
How we apply satellite analysis to gold deposits in Wyoming
Send us a boundary, which can be a block of existing claims, an open area you are considering, or a state section you plan to lease. Our satellite-based mineral detection analyses multispectral and hyperspectral imagery for alteration signatures, structures and rock contrasts, then ranks zones worth a field visit. In open Wyoming terrain we can usually say a lot about exposed greenstone and alteration, and we flag snow, cover and basin sediments where they limit confidence.
- ✔ What you provide: coordinates, KML/KMZ or a polygon, the country or region and the target mineral.
- 📊 What you receive: prospectivity heatmaps, ranked high-potential zones with interpretation, and PDF plus georeferenced GIS files in 5 to 20 business days.
- 📊 Where it saves money: early-exploration cost can fall by up to 80 to 85% and timelines from months to days, compared with ground-first work.
- ⚠ What it is not: a resource estimate, a claim search or legal advice. Trenches, assays and drilling decide what is there.
- ✔ Deeper option: Premium+ adds TargetMax drilling intelligence and 3D subsurface models for structures that justify drilling.
Outline your area on mining.farmonaut.com, Map Your Mining Site or use the mining query form. Our satellite-driven 3D mineral prospectivity mapping overview shows a typical deliverable. We have scanned over 100,000 hectares for more than 20 mineral types in over 25 countries. We are not a land agent, claim filer, or legal adviser: claims, leases and permits go through the BLM, the county clerk, the Office of State Lands and Investments and Wyoming DEQ.
Choosing which Wyoming ground to stake or lease?
Send us the boundary. We will return a satellite prospectivity read with ranked zones, structures and next steps, so your first claim fees and trenches go where the evidence is strongest.
Frequently asked questions about gold deposits in Wyoming
Where are the main gold deposits in Wyoming by district?
The best documented are the South Pass-Atlantic City and Lewiston districts on the southern Wind River Range, the Rattlesnake Hills in Natrona County, and historic districts in the Medicine Bow Mountains, Seminoe Mountains, Owl Creek Mountains and Black Hills.
Is there gold mining in Wyoming today, or only gold deposits in Wyoming left to explore?
There is exploration, including a published 2024 maiden resource at Rattlesnake Hills, but the WSGS describes historic production as poorly recorded and mostly small-scale lode and placer mining. Confirm any active operation with the Wyoming Inspector of Mines.
How much gold came out of South Pass?
The WSGS cites an estimate that as much as 334,000 ounces were mined from the South Pass-Atlantic City district and 50,000 to 180,000 ounces from the Carissa before 1911. Statewide totals are unknown.
How do I stake a gold claim in Wyoming?
On open federal land, a lode claim is staked and marked, recorded with the county clerk within 90 days of discovery, and recorded with the BLM within 90 days of location. The BLM lists US$274 per new lode claim in year one. Confirm that the land is open first.
Can I lease state minerals for gold in Wyoming?
Yes where the state owns the minerals. Metallic mineral leases go to the first qualified applicant under Chapter 24 of the Board of Land Commissioners’ rules, with a ten-year primary term and rent of US$1 per acre in years one to five.
What permits do I need to explore for gold deposits in Wyoming?
Casual use needs no filing. Motorised exploration on federal land needs a BLM notice for 5 acres or less, or a plan of operations above that. The state also requires a Land Quality Division License to Explore for trenching or drilling, and a mining permit at 40 acres or more in four contiguous sixteenth sections.
Can satellites find gold deposits in Wyoming?
They cannot see gold. In open terrain they can map alteration, iron staining and structures that guide where to sample. We treat results as exploration targets, not resources.
Reviewed October 2026 against the Wyoming State Geological Survey gold, Wind River Range and Rattlesnake Hills pages and Geo-notes 67, BLM mining claim, recording, fee and surface management pages, Wyoming Statutes Title 30, Wyoming Board of Land Commissioners Chapter 24, Wyoming DEQ Land Quality Division Guideline 16, the CRS federal land report and the October 2024 Axcap news release. Fees, rules and ownership change, so confirm with the BLM, the county clerk, the Office of State Lands and Investments and Wyoming DEQ. General information, not legal or investment advice.
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