Topos US 1.5 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This software for Mac OS X was originally produced by Pignology, LLC.
The unique identifier for this app's bundle is net.pignology.Topos-US. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The program lies within Education Tools, more precisely Reference. The most popular versions of the program are 1.4 and 1.2.
From the developer:
Topos US is an app that provides access to download and view high resolution USGS topographic maps for the United States.
REGARDING MAP DATES:
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.
You may want to check out more Mac applications, such as TOPO! Explorer, Topo Maps+ or Topo Maps, which might be related to Topos US.
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