TerrainHub vs Rockhounding.org

222,000+ US sites. 14 categories. Gold, hot springs, fossils, caves, waterfalls, and more — for prospectors, rockhounds, fossil and meteorite hunters, hikers, overlanders, landscape photographers, and anyone with an interest in geology. MINERALS & FOSSILS Gold (125k), Precious Metals (14k), Fossils (29k), Rockhounding (663), Meteorites (1.7k). Filter gold sites by prospecting status — active claims, closed claims, historic deposits, fee digs. Filter rockhounding by material type — gemstones, quartz, agates, petrified wood. WATER FEATURES Natural Springs (35k), Hot Springs (2.3k), Waterfalls (11k), Swimming Holes (660). GEOLOGIC FORMATIONS Caves (1.3k), Natural Arches (722), Rock Pillars (419), Slot Canyons (283), Sand Dunes (136). AI GUIDE — ASK ANYTHING ABOUT THE LAND Unlike a regular AI chat, AI Guide checks real government survey data at your exact location — geology, land management, mining claims, soil chemistry, fault lines, and more. Use the pick location on map feature to scout any area and get a full breakdown before you visit. · Text Q&A — Ask about geology, prospecting potential, land rules, or anything about the area. · Photo Identification — Photograph a rock, mineral, or formation. AI Guide cross-references what it sees with the local geology. · Video Analysis — Record a short video and get a breakdown of terrain and formations. Multiple angles reveal what photos can't. · Explore with Kids — Ask AI Guide to explain geological features in simple terms. Turn a family hike into an educational adventure. 17 MAP LAYERS BLM, National Forest, National Parks, State Parks, Wildlife Refuges, Nature Preserves, Wilderness Areas, Streams & Rivers, Lakes & Reservoirs, Active Mining Claims, Closed Mining Claims, PLSS Survey Grid, Rock Types, Soil Geochemistry, Stream Sediment, Fault Lines, Volcanic Features. Private Land Parcels and LiDAR Hillshade coming soon. FIELD TOOLS Waypoints, Field Notes, GPS Camera, Compass, Magnifier, Distance Line, Draw Area, Location Sharing, Import/Export GPX, and more. Offline maps — download regions before you lose service. FREE TO EXPLORE Start exploring for free. Upgrade to PRO for AI Guide, offline map downloads, and geology and mining layers. SUBSCRIPTION DETAILS TerrainHub PRO unlocks AI Guide, offline map downloads, and PRO map layers (Mining Claims, Geology). - TerrainHub PRO Monthly — $9.99/month - TerrainHub PRO Yearly — $89.99/year (save 25%) TerrainHub PRO+ includes everything in PRO plus higher monthly AI Guide limits - TerrainHub PRO+ Monthly — $19.99/month - TerrainHub PRO+ Yearly — $179.99/year (save 25%) All subscriptions include a 7-day free trial. Payment will be charged to your Apple ID account at the confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Privacy Policy: https://terrainhub.app/privacy-policy Terms of Use: https://terrainhub.app/terms

Every place people collect rocks, minerals, gems and fossils in the United States and Canada, on one map you can carry into the field. Rockhounding.org is the largest free rockhounding map there is, and this is it as an app. Find a site. Open the map and see what is near you, or search by name, county, state or mineral. Every site has what is found there, how to get in, what to bring, the land it sits on and what other collectors have logged. Filter to verified sites, fossils, paid digs, mineral occurrences or community submissions. Know the ground you are standing on. Members see BLM, Forest Service, state and tribal land under the map, active mining claims with the holder's name, and Canadian protected areas where collecting is prohibited. Long-press anywhere to drop a private pin. Take it offline. Save an area and its sites once, then use the map with no signal. Field sites rarely have coverage. Keep a logbook. Record visits and finds with photos, build your collection and see it on the map. Share a find with the community, or keep it private. Talk to other collectors. Photo gallery, forum, club directory and a calendar of shows, digs and meetings. Buy and sell specimens and gear in the marketplace. The app is free with ads. Supporter ($14.99 per year) removes ads and adds the trip planner. Pro ($59.99 per year) adds satellite, topo and LiDAR layers, land status, mining claims and offline areas. A rockhounding.org membership bought on the website works in the app, and one bought in the app works on the website. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Terms of Service: https://rockhounding.org/terms Privacy Policy: https://rockhounding.org/privacy