Topo Maps

Topo Maps

Phil Endecott
  • Navigation
  • 2009-03-27
    Release date
  • iOS 6.0 +
  • 7.99$

Topo Maps is an app used to view topographical maps. It is published by the US Geological Survey and Natural Resources Canada. These maps provide a comprehensive overview of the United States and Canada, including Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands. Outdoor enthusiasts utilize these maps predominantly. 



You can download as many of the 70,000 maps as you like, provided your device has enough storage. These are all available for free.

With Topo Maps, you can continue to use the maps even when you don’t have an internet connection. You can download the maps you need while you have internet or cellular coverage. 

In addition to downloading the maps themselves, Topo Maps downloads terrain data. This data is used to create a 3D shading effect over the map to make the land’s shape clearer. Even the direction of the simulated sunlight can be adjusted in this effect. Other applications include a visibility mode that determines what should be visible from any location. 

You can search the app database of over one million place names to find the map you want and to locate specific features on those maps. 

You can create your route or follow someone else’s by adding waypoints to the map. You can also download waypoint files from the internet. 


Covered Areas

The United States includes Alaska, Hawaii, Puerto Rico, and the U.S. Virgin Islands, as well as Canada. We think the following exceptions are not included: A small patch of land near Grand Haven, Michigan is missing. In Arctic Canada, some maps that may never have been printed as paper editions may not be accessible. Most Arctic maps are available, however; please get in touch with their support if you want to know about coverage in specific areas. 


How old are the maps?

The maps of the United States Geological Survey (USGS) are frequently out-of-date traditional topos, but the ground’s form and the courses of rivers usually don’t alter rapidly. The US Topo series, a new map series published by USGS, mimics the traditional topos but is based on different data; please see this page for more information. The Canadian maps are the most current in 2010. If you know of any newer paper or digital versions of any particular maps, please let us know, so that we can correct the problem. 


Will this run on a device that doesn’t have GPS?

Yes, definitely. The device will try to locate you using WiFi positioning, but this is unlikely to be as effective outside of urban areas. If you desire real GPS, Topo Maps works with the Dual GPS Cradle and other external GPS devices. Everything else, aside from that, will function the same. 


How much space is required for the maps? 

The size of a map varies; some maps have a lot of details, while others are rather sparse. When installing a map, however, you may need additional temporary storage; the app may refuse to install a new map if you have less than about 250 Mbytes of free space, in which case you will need to delete other maps you no longer need. 



Topo Maps is the perfect app for outdoor enthusiasts, geologists, researchers, and anyone interested in geography. It lets you explore the world by looking at beautiful images of everyday places that are also important sites of geologic interest. 

You can even create new routes, or follow existing ones, using the app’s powerful navigation features. You will also discover interesting facts about the people and places you interact with throughout your journey.

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