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Topos West

Topos West

iOS Universal Reference

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Topos West is an app that provides access to download and view high resolution USGS topographic maps for the western region of the United States.

NOTE: There is a button in the app to quickly email in case of issues. If you have any issues at all, we'll do whatever we can to make it right. We can't respond to reviews, please give us a chance to fix the issue first.

You will often see a date on a downloaded map that seems pretty old. This is the date of last physical survey. This could be a long time ago. Often maps will be compared to aerial photography to verify buildings but not always. I can't do anything about this and besides, mountains don't move that quick.
See the "Currentness Year and Version Year" section here:

This app includes the following states:

There are over 7,800 maps in total. About 99% of them are there for the states listed.

Some notes on the app:
- There are no frills, just simple, huge topo maps.
- It doesn't show you where you are on the map.
- You can't stitch maps together.
- After a map is downloaded there is short period where the map is broken down so you can zoom and pan, it happens once for each map downloaded.

Please contact us at so we can resolve any issues quickly.

Have a feature request? Send those over to support@pignology too. I'm always happy to fix problems and make apps better.

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What's New

Added some more information when a download is done to help find the map for viewing.

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