RockHoundR — The Rockhounding Map for Finding Better Spots
RockHoundR (stylized rockhoundr) helps you search places to collect, check land access, read the geology, watch the weather, and save the spots worth coming back to.
A field map built for rockhounds
Discover rockhounding spots near you
Move the map to see rockhounding spots around you and filter by popular materials like agate, jasper, quartz, geodes, petrified wood, obsidian, opal, and garnet.
Know where you can go
Toggle land overlays for BLM, National Forest, National Park, Tribal, and other federal areas so you can see where extra rule checks matter before you drive out.
See every spot in detail
Tap a spot for geologic units, lithology, age ranges, current weather, recent rain, hourly forecasts, and a daily rockhounding score.
Draw your hunting trails
Sketch trails and distance lines on the map to plan routes, measure walk-ins, and lay out the ground you want to cover before you head out.
Log your rockhounding finds
Save private spots, log finds with notes and photos, favorite public locations, and keep your own map of places worth coming back to.
How It Works
Go from map search to field plan
Good rockhounding starts before you leave the driveway. Use the map to narrow the area, then check the details that decide whether a spot is worth your time.
- 1
Search an area
Move the map, search nearby spots, and filter by rocks like agate, jasper, quartz, petrified wood, obsidian, and more.
- 2
Check the ground
Review land status, collecting guidance, geology, weather, nearby amenities, and directions before you drive out.
- 3
Build your field map
Save spots, favorite public locations, mark private finds, draw distance lines, and hide or show layers as your plans change.
Map Preview
Before you head out
- Use land status as a starting point, then verify local rules before collecting.
- Check recent rain, road access, and nearby fuel or parking before remote trips.
- Keep sensitive personal finds private and save notes while the details are fresh.
Frequently Asked Questions
Straight answers before you download.
What can I find with RockHoundR?+
Does RockHoundR show public land for rockhounding?+
Can I see geology for a location?+
Can I save my own rockhounding spots?+
Does RockHoundR help plan around weather?+
Does RockHoundR identify rocks from photos?+
Standout rockhounding spots
A short list of hand-picked spots from our U.S. map, chosen for unusual mineralogy or documented public access. Each card opens coordinates, access notes, and the field guide.
Top pickSan Domingo Wash
PublicMaricopa County, Arizona
San Domingo Wash is a documented Au-Pt placer district in the western foothills of the Wickenburg Mountains, with Mindat and USGS-derived records tying the gold to stream-placer concentration. It stands out for Phoenix-area collectors because the target is a named historic placer system, not scattered speculative gold ground.
Gold
Top pickNeptune Mine near Grays Spring
PublicPima County, Arizona
Neptune Mine is a focused Arizona fluorite locality, with Mindat and MRDS records describing a former fluorspar mine where fluorite occurs in lenses and stringers along a schist-granite contact zone. The site adds mineral diversity to the Arizona list because it is a documented industrial-mineral occurrence rather than another chalcedony or placer-gold wash.
Fluorite
Top pickRed Rover mine
PublicMaricopa County, Arizona
Red Rover is a compact Cave Creek district copper-silver stop, with Mindat listing chalcocite and tetrahedrite-group minerals and Western Mining History tying the mine to copper, silver, and gold. It is notable because those sulfide minerals give the Maricopa County list a real ore-mineral locality, not just agate, jasper, and quartz float.
Chalcocite, Tetrahedrite
Top pick1 mi. N of old Three-Way drive-in theater
PublicGreenlee County, Arizona
Black Hills is one of Arizona's clearest public fire-agate localities, with BLM stating that fire agate is the principal attraction and that the site is open for public digging without fees or permits. The locality stands out because the collecting target is specific, chalcedony with opal-like color play in volcanic deposits, and the land manager publishes both access and collecting context.
Fire Agate, Chalcedony
Top pickYork Area
PublicGreenlee County, Arizona
Fire agate is the reason the York and Duncan country earns the first Arizona slot: BLM identifies the nearby Round Mountain area as a public rockhounding destination, and its Arizona brochure lists fire agate as a notable Safford Field Office gemstone. The broader York area adds banded agate, carnelian, and jasper, so the site represents southeastern Arizona's volcanic chalcedony ground rather than a single-mine specimen stop.
Fire Agate, Banded Agate, Carnelian, Jasper
Top pickKingman Feldspar Mine
PublicMohave County, Arizona
Kingman Feldspar Mine represents northwestern Arizona pegmatite collecting, with documented feldspar-quartz workings and rare-earth allanite from the Kingman area. It rounds out the top 10 because the mineral suite, microcline, quartz, and allanite, is geologically different from Arizona's better-known fire agate, turquoise, and placer-gold localities.
Allanite, Microcline, Quartz
Explore rockhounding spots and minerals
2,884 mapped spots across 48 states.
Popular states
Identify a rock from a photo, free
Not sure what you found? Upload a photo to a free identifier and get ranked matches with hardness, habit, and field tests. No app or sign-up required, and every result links back into the map.
Tell two look-alikes apart
Agate or jasper? Real gold or pyrite? Our side-by-side guides show the one fast field test that settles each pair, backed by real photos and verified properties.
Plan your next rockhounding trip
Download RockHoundR on iOS and Android.