US Topo Map Pro is the $8.47 program that I use on my Smartphone for this purpose. The free version of this program lacks the ability to cache maps for off-line use and does not have the ability to import GPS tracks.

The circle with the red dot (when in “My Location” mode), shows your current location on the map. Here I was overlooking Hell’s Gate at Schodack Island State Park.

Earlier this week, I posted 62-county based files (zipped together) containing the source data except for the KMZ version with boundaries.

Google Earth KMZ (individual files, 12 KB – 3 MB): https://andyarthur.org/data/lands/kmzbounds/

Google Earth KMZ Without State Land Boundaries — better importing into some GPS (25 MB): https://andyarthur.org/data/lands/kmznobound.zip

GPX Tracks — trail data in GPX tracks format for GPS, contains no style data or facilities details except name (15 MB): https://andyarthur.org/data/lands/tracks.zip

GPX Waypoints — asset data in GPX waypoints for GPS, contains no style data or asset details except name/type (250 KB): https://andyarthur.org/data/lands/waypoints.zip

Here are screenshots showing the process for loading these files into US Topo Map Pro.

First unzip the file and copy it your GPS device.

Open up US Topo Maps.

Click the three lines, then click tracks or waypoints (depending which you want to load).

The second round button from the left is the import button.

Click the county you would like to load. Sometimes you need to load multiple counties when the locations you plan to explore cross county lines.Click tracks or waypoints to load the track then click import.Then select the track and click show on map.The tracks should appear on the map.Then add the way points. You can click on the waypoints to get the name and feature description.

Tapping on the balloon (waypoint) brings up a menu that lets you Go To (navigation will appear on the screen directing you to the balloon), share the location, or edit the location.