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Geograph CA

By Integrity Logic

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UPGRADE PROBLEMS: some people have reported problems with the latest upgrade, this can be solved by deleting the app from the iPhone/iPod and reinstalling it.

"The ultimate app for Geography/Geology amateurs and professionals."
- Mel Martin,

"the richly annotated geologic map apps by Integrity Logic for California, New York and several other states are great successes in my book."
- Andrew Alden, Guide to Geology

What if you could have all of California in the palm of your hand?

Geology CA is the edition of the popular GIS (geographic information system) covering the state of California. It is a self-contained application (no Internet or cellular access required) that contains a vast amount of information about the geology and geography of California.

Using the iPhone's GPS, it enables you to navigate the state and get a much better understanding of your surroundings, identify geological formations, mines, quarries, rivers, estimate your current elevation, etc....

Included in this version are 28 layers, which can be combined and re-ordered in any desired way:

- states outlines
- the complete geological map from USGS
- terrain elevation
- bathymetry (ocean depth)
- USGS quadrangles
- faults
- plate boundaries
- all earthquakes of magnitude 4.0 and above
- urban areas
- counties
- township and range
- hydrology
- roads and major streets
- all train tracks
- all cities and towns
- active mines
- old mines
- volcanoes
- potassium/argon dates
- aquifers
- hydrologic units
- seismic hazard
- public lands including Indian lands
- fire history from 2001 to 2008
- UTM zones
- state plane zones
- mineral resources (including prospects and occurrences)
- named features (bays, bridges, summits, falls, etc...)

For more details on these layers, see our web site

While this is a professional-quality tool, it is easy to use and can be a lot of fun for anyone who likes to better understand the world around them.

iPhone Screenshots

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Geograph CA
View in iTunes
  • NIS 19.90
  • Category: Reference
  • Released:
  • Version: 1.2
  • Size: 103 MB
  • Language: English
  • Developer:

Compatibility: Requires iOS 3.0 or later. Compatible with iPhone, iPad and iPod touch.

Customer Ratings

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