Fremont County, WY Mining Claims & Land Ownership Map
Current BLM claim data, land ownership layers, and rockhounding-ready backcountry navigation for Fremont County, WY — built for the field.
Fremont County, WY Mining Claims & Land Ownership Map
Current BLM claim data, land ownership layers, and rockhounding-ready backcountry navigation for Fremont County, WY — built for the field.
Fremont County occupies the rugged heart of central Wyoming, anchored by the Wind River Range, the Granite Mountains, and the historic South Pass gold belt. Renowned as the epicenter of Wyoming's 1860s gold rush, the region draws panners, detectorists, and lapidary enthusiasts to historic districts like Atlantic City, Miner's Delight, and Lewiston. Public domain lands managed by the BLM Lander Field Office and the Shoshone National Forest offer expansive mountain and high-desert territory for recreational prospecting outside recorded claim boundaries.
Geologically, Fremont County features ancient Precambrian greenstone belts intruded by granitic batholiths. Hydrothermal activity injected gold-bearing quartz fissure veins into schists and amphibolites, while deep fluvial erosion weathered these hard-rock lodes into alluvial placer gravels along the Sweetwater River, Willow Creek, and Strawberry Creek. Beyond placer gold, the county is world-famous for yielding gem-grade Wyoming nephrite jade ("slicks"), Sweetwater moss agates, jasper, and quartz crystals from weathered metamorphic shear zones and desert washes.
Navigating Fremont County prospecting requires strict spatial boundary tracking. Active unpatented lode and placer claims line proven gold streams and jade grounds, intermingling with private ranches and the Wind River Indian Reservation where collecting is prohibited. Utilizing an active Fremont County mining claims map enables panners, detectorists, and rockhounds to check live federal BLM records, verify open public domain land, and navigate backcountry access routes legally and safely.
7,852
Current / Not-Closed Fremont County, WY Claim Records
54,785
Historical Fremont County, WY Claims
180
Fremont County, WY Rockhound Hotspots
62,817
Total Fremont County, WY Claims & Hotspots
90
Metallic Sites
90
Non-Metallic Sites
Notable finds: Jade · Lap · Corundum · Jasper · O Gems
| Material | Sites Recorded |
|---|---|
| Jade | 64 |
| Lap | 11 |
| Corundum | 2 |
| Jasper | 1 |
| O Gems | 1 |
7,715
Lode Claims
129
Placer Claims
| Claim Type | Current Claims |
|---|---|
| Lode Claims | 7,715 (98.4%) |
| Placer Claims | 129 (1.6%) |
View Free Version · Premium Plans
Save any map area while you have cell service, then navigate active BLM mining claims, surface-management boundaries, and optional layers like elevation contours, roads, and creeks — with zero connectivity out in the field. Offline downloads are included on every paid plan. See plans below →
1867 South Pass Gold Strike: Carissa lode discovery near South Pass City ignited Wyoming's primary gold rush, establishing boomtowns like Atlantic City and Lewiston along the Sweetwater River watershed.
Archean Greenstone Belt Geology: The South Pass mining district is underlain by 2.8-billion-year-old Archean metamorphic schists and greenstones, fractured by gold-bearing quartz fissure veins.
World-Famous Wyoming Nephrite Jade: Metamorphic contact zones in the Granite Mountains and Green Mountains produced North America's premier nephrite jade deposits, yielding wind-polished "slicks" and olive-green boulders.
Sweetwater River Alluvial Placers: Glacio-fluvial carving and desert erosion concentrated heavy placer gold and coarse nuggets in alluvial gravel benches along the Sweetwater River, Willow Creek, and Rock Creek.
Public Domain Access: Vast tracts managed by the BLM Lander Field Office and Shoshone National Forest provide open access for non-powered gold panning, metal detecting, and surface gem collecting outside active claims.
Official Prospecting Resources for Fremont County, WY
Fremont County Clerk - Land Recording Information What it is: The official county recording portal and public land document archive for Fremont County (located in Lander, WY). Use case: Recording local unpatented placer and lode claim location certificates, filing annual Affidavits of Assessment Work (Proof of Labor), and searching courthouse land title records.
BLM Lander Field Office What it is: The official Bureau of Land Management field office portal overseeing public domain surface management and mineral entry across Fremont County. Use case: Verifying open BLM public domain land availability around South Pass and the Granite Mountains, checking 43 CFR 3809 surface management rules, and inspecting active federal claims.
Wyoming State Geological Survey - Gemstones What it is: The state geological survey portal providing technical publications, historical mine maps, and mineral occurrence data for Wyoming gemstones including jade and agates. Use case: Researching South Pass lode mine geology, locating nephrite jade and Sweetwater agate outcrops in Fremont County, and downloading digital geologic maps.
Plans
Basic
Try Staked Maps in one state.
$0/mo
Paid plans unlock full claim details, historical claims, research layers and offline tools.
Get Started FreeLocal Miner
For prospectors who mostly work one state.
$29.99/yr
Everything in Free, plus:
Adventure Miner
For prospectors who cross nearby state lines.
$49.99/yr
Everything in Free, plus:
Pro Prospector
For serious Western prospectors.
$99.99/yr
Everything in Free, plus:
Just here to rockhound?
Rockhound Enthusiast
For nationwide rockhounding research.
$29.99/yr
Gem & crystal hunters, Midwest/East users — everything in Free, plus:
Single State, Tri-State and All-West all unlock the exact same features — nothing is pay-gated between them, they differ only in how many states you get.
Paid plans renew automatically at the monthly or annual rate you choose until you cancel. Cancel anytime and keep access through the end of your paid period. See our Terms of Use.
Staked Maps isn't crowd-sourced guesswork. Current and historical claim boundaries are parsed directly from the Bureau of Land Management's Mineral & Land Records System (MLRS), which replaced the legacy LR2000 mining claim system in 2021, and kept in sync with our database on a regular schedule. Rockhound Hotspots draw from the USGS Mineral Resources Data System (MRDS), cross-referenced by material so you can see exactly what's been found at a given site. For legal filings, always confirm current status directly with your BLM state office of record; Staked Maps is a research and navigation tool, not a substitute for the official record.
Directly from the Bureau of Land Management's official MLRS (Mineral & Land Records System) case-recordation records, synced into our database on a regular schedule — not scraped or crowd-sourced.
Staked Maps displays the status reported by BLM. Records with a case disposition of Active are labeled Active; historical records come from BLM's closed-claims dataset. These statuses are research information, not a Staked Maps legal determination of claim validity, discovery, ownership or compliance. Verify the current record through MLRS before acting on it.
Free users can search by county. Paid plans add search by claim serial number, plus each claim's full legal (aliquot) description and BLM records link.
Staked Maps currently tracks 7,852 current federal mining claim/site records and 54,785 historical claim records from BLM MLRS, plus 180 Fremont County, WY mineral-occurrence records derived from USGS MRDS.
A premium map layer of documented mineral occurrences, prospects and mines sourced from USGS MRDS and labeled by material where available. These records are research leads, not a directory of verified public collecting sites.
Yes — the live map covers all of Wyoming, not just Fremont County. Other Wyoming counties with a dedicated page: Carbon County, Sweetwater County, Park County and Albany County.
Fremont County Clerk - Land Recording Information is Fremont County, WY's primary office for filing and researching mining claims — see the Official Filing & Information Links section above for the direct link and more resources.
Regulatory and editorial content last reviewed against official records · Source: Fremont County Clerk - Land Recording Information · USGS MRDS
Information hosted on Staked Maps is compiled from publicly available data streams provided by the Bureau of Land Management (BLM) and relevant state geographic clearinghouses. Staked Maps accepts no liability for the content of this geospatial data, or for the consequences of any real-world exploration, land entry, or staking actions taken on the basis of the information provided via this application interface.
Staked Maps makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the pinpoint accuracy, reliability, completeness, latency, or programmatic utility of these geospatial data layers, or for the improper interpretation of these data grids.
These mapping layers and related graphics are visual convenience aids only; they are not legal documents and must never be used as such. The data may not be used to legally determine title, mineral ownership, valid description boundaries, jurisdictional authorities, or land restrictions in place on public or private land. Natural backcountry hazards may or may not be depicted on topographies, and land users are strictly mandated to exercise caution. Federal records are dynamic and change constantly. The end-user is exclusively responsible for validating current land classifications with local BLM field offices and managing compliance accordingly.