Outcrop - AR geologic maps for reading rocks around you
Show HN: Point your camera at a landscape to learn about its geology
Outcrop turns your phone's camera into a geology field guide. Hold it up to a canyon wall, road cut, or distant ridge, and the app overlays the geologic map onto the land in augmented reality, naming each rock unit under your reticle and labeling peaks and lakes in view. Powered by Macrostrat's worldwide geologic maps, it reveals the rock beneath your feet, the full column of strata below the surface, fossils found there, and even where the rock formed on an ancient globe using Christopher Scotese's PALEOMAP data. Save areas for offline use, search for any rock or fault, and dig into Quaternary deposits, active faults, and soils. Free for iPhone and Android.
Hold up your phone and Outcrop draws the geologic map onto the land in front of you, each rock unit named — and it works offline too.