Bluff: Gold Prospecting in San Juan County, Utah
Updated July 2026
Bluff is a mapped rockhounding spot in San Juan County, Utah. Reported finds include gold. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Bluff in San Juan County, Utah
Quick details
- Access
- Permission required
- County
- San Juan County
- State
- Utah
- Nearest road
- 500 South
- Postcode
- 84512
- Coordinates
- 37.27281, -109.56110
Geology at Bluff
This spot sits on Alluvium and colluvium, mapped as unconsolidated alluvium and colluvium that formed within roughly the last 3 million years. Stream-worked gravels like these are where placer gold tends to concentrate, settling toward bedrock, inside gravel bars, and behind boulders.
- Mapped unit
- Alluvium and colluvium
- Age
- 3 Ma to present (Quaternary)
- Rock types
- unconsolidated alluvium and colluvium
- Elevation
- 4,310 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 Bluff
Best months: February to May. Typical highs run 96°F in midsummer and 43°F in midwinter, with winter lows near 20°F. Monsoon storms peak in July and August and can flood washes fast.
Climate normals: NOAA 1991-2020 monthlies, BLUFF station (1 mi away).
Land & collecting status
Permission required before collecting
Requires landowner or agency permission before any collecting. Do not enter without explicit authorization.
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 Utah, Rockhounding overview
- Utah Geological Survey, collecting guidelines
- SITLA, surface use rules
- Community submissions reviewed against published agency rules
Found at Bluff
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 Bluff.
- Comb RidgeSan Juan County, Utah · 6 mi awayArizona Ruby Garnet
- San Juan RiverSan Juan County, Utah · 8 mi awayAnhydrite, Chalcopyrite, Copper
- Mule EarSan Juan County, Utah · 10 mi awayPyrope Garnet
- Moses RockSan Juan County, Utah · 16 mi awayArizona Ruby Garnet, Chlorite, Corundum
- Mexican HatSan Juan County, Utah · 17 mi awayUranium
- Chinle WashSan Juan County, Utah · 20 mi awayPyrope
- Montezuma CanyonSan Juan County, Utah · 26 mi awayCarnotite
- Monticello mining districtSan Juan County, Utah · 39 mi awayAnhydrite, Carnotite, Gypsum
Across the state line from Bluff
Bluff is close enough to the Utah border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
