Mancos brings the geology of the United States and beyond to your iPhone. Tap the map, search by name, or use GPS to instantly locate yourself, show state-level geological maps, the geological formation and the regional stratigraphic column, all supplied by the servers at Also view any fossil collections from your region, supplied by

What’s New

Version 3.5

• Improved performance under poor internet connections
• Minor interface improvements
• Updated for iOS 12

Ratings and Reviews

5.0 out of 5
6 Ratings

6 Ratings

007800 ,

Old Man

I’ve had this app for a few years or more now. Very impressive. The search feature is Awesome. Search by the actual address is “very helpful “ Well done.

SedonaDenise ,

Love the Latest Update

Mancos keeps getting better and better. I especially enjoy the seemless drill down from continent-wide views, all the way to my street and house, with clickable geological overlays.

Add to that, nearest strat columns, and paleo links ... Mancos is by far the best geology app available.

Strongly recommended.

KoowanPStark ,

Issues Fixed

The long awaited update fixes a number of issues that burdened the last version. Now works as advertised. Excellent app.


Hunt Mountain Software
40.7 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2012 Hunt Mountain Software


  • Family Sharing

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