Garmin GPS Map

Photo of Garmin GPS sitting on a map The map has been built using a product called Mapwel 2011. This is a third-party software product that is used to create and upload custom maps for Garmin GPS units. The product features a free MapUpload program that is used to upload the map to your GPS unit.

This map is being released as a beta version with enhanced functionality and more features to come at a later date.  Currently the roads available on the map are presented as line features that lack the ability for your GPS to use its routing feature. This means that if you enter a location into your GPS it will be unable to use the MTP roads to navigate to your destination. This functionality is currently being researched and should be available in subsequent releases. In the meantime the map feature of your GPS can be used to show the MTP roads and their designations.

The map has been designed to be scalable, that is, the more you zoom in the more road features will appear. This is done to reduce clutter when zoomed out to a small scale and to increase drawing performance. If you feel that you are not seeing the data you intended try zooming in.

The map was designed for color GPS units, it will function in compatible grayscale units, however, the road symbology will be mostly lost.  In addition you may need to turn the marine colors feature on your GPS off, to properly display the water features on the ownership layer.

Your GPS unit must be able to accept User Defined Styles in order for the information to be displayed correctly. Newer Garmin units will accept user defined styles, although you may need a firmware update for your unit. See for information on updating firmware.

Downloading the Data

  1. Mapwel website to confirm your Garmin GPS unit compatibility with the software

  2. Download the Mapwel MapUploader software

  3. Download the Ashley National Forest MTP Garmin Public Map

  4. Instructions to load the map onto your GPS

This GPS Map Does Not Replace the Motor Vehicle Use Map

Please note that while this data is being provided as part of the Motorized Travel Plan, it does not replace the Motor Vehicle Use Map (MVUM) provided by the Ashley National Forest.

The MVUM is a legal document that identifies the roads and trails where motor vehicles are allowed. It will be reissued each year, much like hunting proclamations or regulations. It is the user’s responsibility to be familiar with the annual MVUM. The map will be provided free of charge on the internet at: Please note that cross-country, or “off-road” motorized travel is prohibited forest-wide.

This GPS map is intended to provide more specific information about forest routes. Users must remain in compliance with the official Motorized Vehicle Use Map, and it is highly recommended that it be carried as a companion to this GPS map.


General Disclaimer

  • The USDA Forest Service makes no warranty, expressed or implied, including the warranties of merchantability and fitness for a particular purpose, nor assumes any legal liability or responsibility for the accuracy, reliability, completeness or utility of these geospatial data, or for the improper or incorrect use of these geospatial data. These geospatial data and related maps or graphics are not legal documents and are not intended to be used as such. The data and maps may not be used to determine title, ownership, legal descriptions or boundaries, legal jurisdiction, or restrictions that may be in place on either public or private land. Natural hazards may or may not be depicted on the data and maps, and land users should exercise due caution. The data are dynamic and may change over time. The user is responsible to verify the limitations of the geospatial data and to use the data accordingly.
  • The Ashley National Forest shall not be liable for any damages or losses of any kind that may result from the use of the software and/or maps provided on this site.

Accuracy of Maps

  • The Ashley National Forest provides this map on an "as is" basis and makes no representations or warranties of any kind as to the accuracy of the map. Due to the inherent errors of GPS navigation and the possibility that this map could contain errors, the Ashley National Forest does not guarantee the accuracy or validity of GPS data or text descriptions. The Ashley National Forest shall not be responsible for any damages resulting from inaccurate or omitted information on these maps.
  • This map is intended to depict physical features as they generally appear on the ground and may not be used to determine title, ownership, legal boundaries, legal jurisdiction, including jurisdiction over roads or trails, or access restrictions that may be in place on either public or private land. Obtain permission before entering private lands, and check with appropriate government offices for restrictions that may apply to public lands. Lands, roads and trails within the boundaries of the National Forest may be subject to restrictions on motor vehicle use. Obtain a Motor Vehicle Use Map, or inquire at the local Forest Service Office for motor vehicle access information. Natural hazards may or may not be depicted on the map, and land users should exercise due caution.

Third Party Software Packages

  • The Ashley National Forest is using a third-party software package called Mapwel for map creation and distribution. The map may not be compatible with all Garmin GPS units. Please see to see a list of compatible units. Do not attempt to use the software or provided map(s) if your unit is not specifically mentioned. Attempting to load data into a unit that it is not intended for may render the unit inoperable and would need to be sent to Garmin for repair. The Ashley National Forest shall not be liable for any damages or losses of any kind that may result from the use of the software and/or maps provided on this site.
  • The Ashley National Forest makes no representations about products sold or offered from the website(s) this page may link to, and disclaims all warranties, express or implied, in regard to your use of those products.

 Safety Is Your Responsibility

  • The Ashley National Forest disclaims all liability for injury, damage, death or other loss resulting from your use of any product or use of any information received from The Ashley National Forest or its website.
  • Use the GPS maps and data at your own risk. This map is designed to provide route suggestions and provide more information about forest roads. It is not a replacement for driver attentiveness and good judgment. Do not follow route suggestions if they suggest an unsafe or illegal maneuver, or would place the vehicle in an unsafe situation.
  • When using this map, carefully compare information displayed on the device to all available navigation sources, including road signs, road closures, road conditions, traffic congestion, weather conditions, and other factors that may affect safety while driving. For safety, always resolve discrepancies before continuing navigation, and defer to posted road signs and road conditions.
  • Always use your best judgment, and operate the vehicle in a safe manner. Do not become distracted by the device while driving, and always be fully aware of all driving conditions. Minimize the amount of time spent viewing the device screen while driving and use voice prompts when possible.
  • Do not input destinations, change settings, or access any functions requiring prolonged use of the device controls while driving.  Pull over in a safe and legal manner before attempting such operations.

 Questions and Comments

This is a new project for the Ashley National Forest and the first time we have attempted to distribute maps via portable devices.  While we can’t offer any technical assistance when it comes to individual GPS units or use of this software, we would like to hear about your experiences using the maps and any general questions or comments you may have.  Contact us by using the links at the top right of this page.

Key Contacts


Mathew Lee
GeoSpatial Data Manager