The OwlsheadGPS Project allows users to download OHV route files in either the KML or GPX formats. Both file formats are recognized standards for exchanging GPS data.
KML files can be opened by applications such as Google Earth or uploaded to your Google Maps account. GPX files can be opened by applications such as Garmin Basecamp (free), and National Geographic Topo. ExpertGPS is a low cost but versatile application that opens and saves GPS files in variety of formats.
Understand that these files will be most useful to experienced GPS users. In most applications, if given the choice, you’ll want to open as “tracks” rather than “routes.”
TIP: Because GPX and KML files are simply text files, when you download an individual GPX or KML route file using the MapViewer, your browser may display the file rather than download it to your computer. If this is the case, simply perform a “Save” or “Save As” action being sure to append the “.gpx” file extension for GPX files, or the “.kml” extension for KML files. Consult your browser’s Help resources for additional tips on downloading GPX and KML files.
If you continue to have trouble downloading individual route files, download our route sets that are compressed into the ZIP format.
For detailed information about these GPS file formats, see:
KML: http://en.wikipedia.org/wiki/Keyhole_Markup_Language
GPX: http://en.wikipedia.org/wiki/GPS_eXchange_Format
OwlsheadGPS Route Data is produced with use in Avenza Maps in mind.
To use our Route Data on your mobile device, please refer to the guide below.
FOR IOS DEVICES
Step One:
From the Route Data downloads page, select a region of your choice using our interactive image map.
Agree to the OwlsheadGPS License Agreement, then Click “Copy Link.” This will copy a download link to your clipboard.
Open the Avenza Maps App.
Step Two:
In Avenza Maps, select a map to use as a basemap. If you have no maps installed, only the Avenza Basemap will be available to you.
Select “Open basemap” or if preferred, select a map that you have installed.
In the bottom right corner of the Basemap screen, there is an icon that looks like three squares stacked atop one another. This is the Map Layers icon. Click it to add layers to your basemap of choice.
In the top right corner of the Map Layers screen, there is a plus icon. Click the plus icon, then select “Import Layers.”
In the Import Layers page, locate the “FROM THE WEB” section. In the box that says “Enter or Paste URL here,” paste the link that you copied to your clipboard in Step One. Now, the region file will be downloaded and linked to your map of choice.
FOR ANDROID DEVICES
Step One:
From the Route Data downloads page, select a region of your choice using our interactive image map.
Agree to the OwlsheadGPS License Agreement, then Click “Copy Link.” This will copy a download link to your clipboard.
Open the Avenza Maps App.
Step Two:
In Avenza Maps, select a map to use as a basemap. If you have no maps installed, only the Avenza Basemap will be available to you.
Select “Open basemap” or if preferred, select a map that you have installed.
In the bottom right corner of the Basemap screen, there is an icon that looks like three squares stacked atop one another. This is the Map Layers icon. Click it to add layers to your basemap of choice.
In the bottom right corner of the Map Layers screen, there is a plus icon. Click the plus icon, then select “Import Layers.”
In the Import Layers page, locate the “Web resource” section. In the box that says “Enter or Paste URL here,” paste the link that you copied to your clipboard in Step One, and click “OK.” Now, the region file will be downloaded and linked to your map of choice.

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