Unnamed Location (Jade): Jade Rockhounding in Mariposa County, California
Updated June 2026
Unnamed Location (Jade) is a mapped rockhounding spot in Mariposa County, California. Reported finds include jade. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Unnamed Location (Jade) in Mariposa County, California
Quick details
- Access
- Public area
- County
- Mariposa County
- State
- California
- Coordinates
- 37.64635, -120.11767
Geology at Unnamed Location (Jade)
This spot sits on volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains), mapped as mafic volcanic that formed roughly 200 to 145 million years ago. Volcanic ground like this weathers into rocky slopes and float, and fresh exposures in cuts and drainages are usually the most productive places to look.
- Mapped unit
- volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains)
- Age
- 200–145 Ma (Jurassic)
- Rock types
- mafic volcanic
- Elevation
- 2,660 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 Unnamed Location (Jade)
Best months: September to June. Typical highs run 92°F in midsummer and 54°F in midwinter, with winter lows near 32°F.
Climate normals: NOAA 1991-2020 monthlies, GROVELAND 2 station (15 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 California — Recreational mineral collecting
- California Geological Survey
- CDFW — Suction Dredge Mining Permit Program
- Community submissions reviewed against published agency rules
Found at Unnamed Location (Jade)
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 Unnamed Location (Jade).
- Surprise ClaimMariposa County, California · 4 mi awayRhodochrosite, Rhodonite, Spessartine Garnet
- Purcell-Griffin MineMariposa County, California · 4 mi awayChromite
- Unnamed Location (Mariposite)Mariposa County, California · 7 mi awayMariposite
- Unnamed Location (Grossular garnet)Fresno County, California · 65 mi awayGrossular Garnet, Vesuvianite
- Clark Valley (North Side)Fresno County, California · 74 mi awayEpidote
- Clark ValleyFresno County, California · 74 mi awayApatite, Andalusite
- Coyote CreekSanta Clara County, California · 87 mi awaySiderite
- Aurora Mine (permission required)San Benito County, California · 92 mi awaySerpentine
Across the state line from Unnamed Location (Jade)
Unnamed Location (Jade) is close enough to the California border that the next-closest rockhounding spots are in a neighboring state. Worth knowing if you are already on the road.
