Mancos - updated for iOS 7!

Your geology, right now.

How many times have you been in the field and wished you had a geologic map? With your iPhone, an internet connection, and Mancos, now you do. Go anywhere in the lower 48 United States with GPS, a tap on the map, or search by name. Mancos shows you a geologic map of the area, details about the stratigraphic unit at that location, and the regional stratigraphic column, using data supplied by You can even see all of the fossil collections reported in the region by the Paleobiology Database.

Works with iPhone 3GS and up - Buy it for $1.99 at the App Store

Strike and Dip - updated for iOS 7!

Take your iPhone into the field

Take your strike and dip measurements in one step, measure accurate bearings and vertical angles. Save all of these as editable notes, tagged with your current date, time, and GPS position. Add photos to your notes, too. All your notes and photos are easily retrieved.

Works with iPhone 3GS and up - Buy it for $4.99 at the App Store

Coordinates Lite - updated for iOS 7!

Instant, free conversion of GPS coordinate systems

Coordinates Lite is a great free way to quickly convert between the three formats for recording latitude and longitude: decimal degrees, degrees and decimal minutes, and degrees-minutes-seconds. It couldn’t be simpler: tap the coordinates, edit them, and the conversion is instantaneous.

Works with iPhone or iPod Touch - Free at the App Store

Coordinates - updated for iOS 7!

Instantly convert GPS coordinates, map them, and point yourself to them

Coordinates makes it a snap to convert any position between the three formats for recording latitude and longitude. Send the location as a text message, view it on a map, or get a bearing and distance that will let you walk right to the location. Even use the GPS to get your current position.

Works with iPhone 3G and up - Buy it for 99¢ at the App Store