Giltedge: Gold Prospecting in Fergus County, Montana
Updated June 2026
Giltedge is a mapped rockhounding spot in Fergus County, Montana. Reported finds include gold. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Giltedge in Fergus County, Montana
Quick details
- Access
- Public area
- County
- Fergus County
- State
- Montana
- Nearest road
- Maiden Road
- Coordinates
- 47.14585, -109.23543
Geology at Giltedge
This spot sits on Madison Group: Mission Canyon and Lodgepole Formations; or Castle Reef and Allan Mountain Formations, mapped as limestone, dolostone, and black shale that formed roughly 360 to 330 million years ago. Carbonate rock like this dissolves and weathers readily, so fresh road cuts, quarries, and creek exposures are typically the most productive ground.
- Mapped unit
- Madison Group: Mission Canyon and Lodgepole Formations; or Castle Reef and Allan Mountain Formations
- Age
- 360–330 Ma (Mississippian)
- Rock types
- limestone, dolostone, and black shale
- Elevation
- 5,470 ft
Geologic mapping via Macrostrat and the underlying state geological survey maps (CC BY 4.0). Bedrock at the surface can vary within a mapped unit.
Best time to visit Giltedge
Best months: April to October. Typical highs run 76°F in midsummer and 31°F in midwinter, with winter lows near 13°F.
Climate normals: NOAA 1991-2020 monthlies, LEWISTOWN 11ESE station (10 mi away), adjusted for elevation.
Land & collecting status
Generally open to casual rockhounding
Most public-tagged spots sit on BLM, U.S. Forest Service, or other federal land where reasonable hand collecting of common rocks and minerals is allowed. Confirm posted rules and active mining claims before you dig.
Public-land rules vary by agency, season, and field office. The RockHoundR app pulls live BLM, USFS, NPS, and tribal overlays so you can see exactly which agency manages the ground at this spot.
Sources & verification
Spot details combine the public RockHoundR location dataset, normalized mineral labels, agency land-status checks in the app, and community submissions. Coordinates are approximate until verified in the field.
State guidance last verified:
- BLM Montana — Recreational mineral collecting
- Montana Bureau of Mines and Geology
- Gem Mountain Sapphire Mine (fee-dig operator)
- Community submissions reviewed against published agency rules
Found at Giltedge
Each chip opens all spots that produce that material; the encyclopedia link opens the full ID and field guide.
Nearby rockhounding spots
Other rockhounding spots within driving distance of Giltedge.
- Yogo GulchJudith Basin County, Montana · 59 mi awayGold, Ruby, Sapphire
- LanduskyPhillips County, Montana · 61 mi awayGold, Pyrolusite, Malachite
- NeihartCascade County, Montana · 71 mi awayGalena, Polybasite, Silver
- Narrow Gauge GulchCascade County, Montana · 72 mi awayPyromorphite
- MonarchCascade County, Montana · 74 mi awayBeryl
- Bear Paw MountainsHill County, Montana · 77 mi awayColumbite
- Yellowstone River (Billings area)Top pick in MontanaYellowstone County, Montana · 96 mi awayMontana Agate, Chalcedony, Chert
- White CreekMeagher County, Montana · 109 mi awayCopper
