Amboy Crater — Rockhounding in San Bernardino County, California
Amboy Crater is a mapped rockhounding spot in San Bernardino County, California. Reported finds include boltwoodite, jasper, obsidian. Below: coordinates, access notes, nearby spots, and trip-planning links.
Map showing Amboy Crater in San Bernardino County, California
Quick details
- Access
- Public area
- County
- San Bernardino County
- State
- California
- Nearest road
- Amboy Crater Trail
- Postcode
- 92304
- Coordinates
- 34.54478, -115.79235
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 Amboy Crater
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 Amboy Crater.
- Bristol Dry LakeSan Bernardino County, California · 9 mi awayCelestite Concretions
- Afton CanyonTop pick in CaliforniaSan Bernardino County, California · 48 mi awayOpalite, Jasper
- Midway Area (Lavic Jasper)San Bernardino County, California · 51 mi awayLavic Jasper
- Rouse HillRiverside County, California · 82 mi awayAmazonite, Idocrase, Rose Quartz
- Unnamed Location (Fire Agate)Top pick in CaliforniaRiverside County, California · 91 mi awayChalcedony, Fire Agate
- Eagle CragsSan Bernardino County, California · 93 mi awayBlue Agate, Bentonite, Calcite
- Old Quarry (Riverside)Riverside County, California · 100 mi awayAxinite
- Area Near Jenson QuarryRiverside County, California · 100 mi awayHornblende
Across the state line from Amboy Crater
Amboy Crater 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.
Amboy Crater FAQ
Where is Amboy Crater?+
What rocks and minerals can you find at Amboy Crater?+
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More rockhounding in California
See all 97 California spots →Open Amboy Crater on the map
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