Download high resolution USGS topographical maps for offline GPS* use.

Topo Nomad is designed for road trips, camping, hiking, exploration and geographical history. Map images are accurately center aligned regardless of datum and placed on top of Apple's map kit for easy referencing and intuitive touch navigation.

This software utilizes the latest capabilities of IOS offering the highest performance with fast start up, map rotation, rendering and zoom with unbeatable details and undistorted resolution. Map downloads are dispatched in the background so you can continue using the app while new maps concurrently install.

Topo Nomad indexes of over 250,000+ U.S. Geological Survey current and historical topographic maps describing the topography of every region and island territories of the United States of America. Historical versions date as far back as year 1884. Install a map quad by pressing and holding a point on the reference map and discover the USGS historical maps available at that coordinate and the unique names given to every quad by the cartographers.

The limits don't stop there with just USGS maps. Import "Geospatial PDF" maps from the web, iTunes and email. Many local and national park services offer PDF map downloads from their web sites which automatically install into the Topo Nomad app. And, if you reside outside the United States check with your government services for topographic and aeronautical sectional maps with embedded geospatial metadata.

Cannot find that map you downloaded but know where in the world it's located. Simply zoom out the reference map view and all the topo maps become a colorful violet and partially transparent so you can spot your map. Installed maps are managed in a table format which can be sorted by name, distance, and scale. Multiple versions of the same map can be stacked on top of one another and made visible or hidden using two finger swipes.

Planning a hike somewhere and want to know the distance of your jaunt. Download the map and use the dual mode ruler to measure the path distance and know the answer to "how much farther?"


• No need for cellular service to use
• GPS location on downloaded topo maps while offline
• Find geographic features with geocode search
• Waypoints with Augmented Reality finder
• Track path GPS recording*
• Route paths and distance
• Dual mode ruler with orthographic line and path measuring
• Full app usability while maps download in the background
• Displays footprint grid and quadrangle names
• Aligns all map datums to WGS84 GPS coordinates
• Dynamic map stitching
• Cropping of map margins for one big map grid
• Automatic map download for your current location
• Uses GPS location service to identify your location on a topo map
• Miles, Feet, Kilometers, Meters, Nautical Miles units
• Latitude and Longitude decimal and minutes seconds coordinate display
• Maps are free to download and USGS maps are public domain
• Import maps downloaded from the USGS in zip and PDF file formats
• Import Geospatial PDF map images via a the web, email attachment & iTunes
• MSL elevation for GPS location
• Email and SMS text waypoints, tracks and routes as GPX files

Not currently supported: UTM/MGRS coordinate; geo-TIFF; PDF Layers. Not all geospatial datums and metadata formats are supported, please email support with Geospatial PDF issues.

* Continued use of GPS running in the background can dramatically decrease battery life. Some iPad (wifi-only) & iPod models do not have GPS and compass hardware required for location, elevation, tracks. Downloading queue size does cap to around 25 maps.

What's New

Version 6.3

• Bug fix: The distance units defaults to metric, or statute units depending on locale setting, and remembers the last units setting.
• Waypoint callouts notes supports HTTP web links and HTML text format, first characters must be "<HTML", "HTTPS:" or "HTTP:" without "s.

Ratings and Reviews

Topo Nomad


Topo Nomad is a great app. Far better than many other apps like it. I have purchased copies for myself and the people in my company. I do forestry and fire management and this will be our go to map software. The only improvments it needs is the abilty to export gpx files through email (currently only able to do this through iTunes) and I wish it worked on other phones since not everyone has an iPhone. If it also had the ability to share peoples locations with a log in that would be amazing and I would pay additional for that feature.

Developer Response

Thank you for your feedback. Version 6.0 of Topo Nomad now has a new feature to send waypoints, tracks, and routes over email and SMS text messaging. The exported file is GPX format. Also, the track recording feature could be used to log a users GPS positions. The track recording also runs while not using the app. Adding a log note to the recording is done by adding a waypoint and putting notes in the waypoint. Tap the (i) info button on the waypoint callout and add notes in the text window. To add a waypoint to a track, do the following: 1) In the Route & Tracks menu, turn on Track Recording. 2) Select the current recording track to be displayed (red highlighted name). 3) Lock the map to your GPS position by tapping the location service arrow button so it is outlined solid green, indicating it is following your location. Pressing and holding the button for a second will do this too. Now while in this mode, GPS following your location and recording track displayed, 4) Add a waypoint and enter a note message in the new waypoint by tapping the (i) button on the callout. The new waypoint should be recorded into a newly created waypoint group named as the track name. The track waypoints should appear as green dots symbols instead of the default red pin. If they don't repeat steps 2 & 3 above. Note: the track waypoints may need to be exported as a separate waypoint GPX file as they are not embedded into track GPX file (as of version 6.0 of the app).

Amazing. Historical research as I never imagined it could be.


I search for lost, forgotten and abandoned cemeteries. I have spent hours pouring over old maps, comparing historical maps to existing maps and aerial/satellite images and have already made a huge discovery using this app.

Less than 10 miles from me, I found a cemetery noted on a 1916 map and on another map in 1922 but, after that, it is not shown on later maps.

Using the information I found using Topo Nomad, I drove out and found that the cemetery is, indeed, still there. It is severely neglected and, without this app, I never would have known it existed. It’s an exciting discovery as none of my colleagues were aware of it either.

I’m use this every day. Kudos to the developers!!

Edit: Update on November 25 seems to have improved speed. Thank you.

Request: Putting this here because I don’t see a way to contact developer directly (although it’s probably right in front of me). Are there plans to make this available on the Mac? It would be very handy to have it on my desktop.

Amazing App!


This has got to be one of the most amazing apps I have found so far! Beyond amazing utility. By far the best hiking and outdoor awareness app I have seen / used. The fact that it runs on an iPhone usable is- amazing!if the maps can be kept reasonably up to date, it will be my constant companion in the out-and-about. This one I will donate to! Thanks!
I think about the only thing I could possibly add is that having a symbol key built in in the manual ( which is also - you guessed it - AMAZING!) might be useful to neophytes...


Delcartes LLC
49.9 MB
Requires iOS 9.1 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
This app may use your location even when it isn't open, which can decrease battery life.
© 2014-2018 Delcartes llc


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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