Hutton App

Unlock Earth’s geologic wonders with Hutton.

Whether you are a seasoned geologist, a student, or a weekend rockhound, Hutton turns your smartphone into an easy to use, comprehensive geology field guide. Named after the father of modern geology, James Hutton, our app bridges the gap between deep scientific data and the joy of outdoor discovery.

Explore professional geologic maps

Powered by Macrostrat integration, Hutton provides a deep look at the ground beneath you.

• Real-Time Data: View interpretative geologic maps that update as you hike, climb, or drive.
• Formation Insights: Explore geologic units to learn about the surrounding rock’s age, lithology (rock type), formation, and stratigraphic name.
• Offline Access: Headed off-grid? Download maps and take the world’s geology with you, even without cell service.

Identify rocks and minerals

Never leave a mystery stone behind. Hutton offers a dual-approach to identification:

• Instant AI ID: Snap a photo for high-speed identification trained on thousands of verified mineral specimens.
• The "Scientific Method" Mode: If you want to be certain, Hutton guides you through a manual testing prompt. Answer questions about Hardness (Mohs Scale), Luster, Streak, and Cleavage to arrive at a professional-grade identification. It’s not just an ID—it’s a geology lesson.

Discover the ultimate rockhounding companion

Find your next treasure with our database of 32,000+ rockhounding sites.
• Know Before You Go: Get detailed info on what minerals are found at each site (Agates, Geodes, Quartz, and more).
• Site Insights: Each rockhounding location includes AI-generated identification tips, collector notes, and geological summaries to help you know what to look for.

Document your journey

• Document your expeditions with our "Trips" feature. Save photos of outcrops and write field notes directly to your GPS-tagged path.
• At the end of your journey, Hutton generates a beautiful, organized report summarizing your discoveries and the geologic formations you traversed.

Who is Hutton for?

Outdoor Enthusiasts: Add a new layer of depth to your adventures. It’s like having a professional geologist at your side.

Students & Educators: A powerful companion for geology field camps. Turn every hike into a laboratory.

Hobbyist Rockhounds: Use our site guides and ID tools to build a world-class collection.

Professional Geologists: A quick-reference tool for stratigraphic units and a digital backup for field observations.

A global geology community

Virtual Collection: Catalog your finds in a beautiful digital gallery and photo album.

Geology Dictionary: Master the terminology of Earth Science with an integrated glossary of thousands of terms.

Community Hub: Share your trip reports, ask questions, and connect with a community that shares your passion for the Earth.

Frequently asked questions

• Does it work in remote areas? Yes! Our offline mapping and trip tracking are designed for remote field work.
• How accurate is the identification? Our AI is constantly learning, but our "Physical Test" mode ensures you have the tools to verify every find personally.
• Is my data private? Your field notes and trip locations are yours alone. You only share what you choose to post to the Community Tab.

Download Hutton today and uncover the stories written in stone.