Find spots worth the drive
Browse rockhounding spots and fossil sites across the US. Tap any spot to see what's been found there, how to get there and whether it's open to the public.
- Average App Store rating
- 4.7
- Downloads
- 110K+
- Free to download
- iOS + Android
Our apps
RockHoundR
Rockhounding map for iOS and Android
The map for rockhounds, prospectors and fossil hunters. Find collecting sites, check who manages the land and see the rocks under your feet.
Know whose land you're on
Land layers show BLM, National Forest and National Park land. Tap anywhere to see who manages it, how to reach their office and whether an active mining claim covers it.
See the rocks under your feet
The geology layer colors surface rock by age, from Precambrian to today. Tap an era to learn what to look for there.
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Offline maps
Download map areas before you go. The app keeps working when your signal doesn't.
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3D terrain
Scout the landscape in 3D before you head out.
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Conditions
Check the weather at any site, with wildfire, snow and rain layers on the map.
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Your collection
Log every find with photos, location and notes. Finds are private unless you share them.
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Routes
Draw routes on the map and see their distance and elevation profile.
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Community
Share finds, follow other rockhounds and find a club near you.
RockHoundR is free to download. RockHoundR Pro, a monthly or yearly subscription, adds land layers, mining claims, conditions, offline maps, 3D terrain and more.
Ruby Glint
Rock identifier for iOS and Android
The rock identifier for collectors and the curious. Find out what a rock or mineral is from a photo and learn the geology behind your finds.
Identify rocks from a photo
Take a photo of a rock, crystal or mineral, or pick one from your photos, and Ruby Glint tells you what it is.
Learn what you found
Each result lists the stone's hardness, density and other properties, and explains how it formed.
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Lessons
Learn about mineral properties, crystal systems and identifying rocks in the field.
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Your collection
Keep a record of the rocks and minerals you find, sorted by type, location or notes.
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Value estimates
See what a specimen may be worth, based on its rarity and quality.
Ruby Glint is free to download. A subscription adds unlimited identifications and more.
What rockhounds say
All RockHoundR reviews on the App Store
“Tried a bunch of apps before this one. This app just works, clean, fast, no weird stuff.”
“The second location I checked out turned into one of my best days of collecting this year.”
“LOVE this app! Especially premium! Gives great info and we use it every day we travel!”
How we work
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Few products, made properly
We'd rather build a few apps well than many apps halfway.
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Useful first
Every feature has to solve a real problem for the people using it.
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No ads, no selling data
Our apps don't show ads, and we don't sell personal information.
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Here for the long run
We keep our apps updated and listen to the people who use them.