Or maybe I'm attacking it the wrong way. Yes, I have a Garmin, and a large SD card. I'm trying to find a source for routable OSM maps of the entire continental USA that will install into Garmin's Basecamp or Mapsource software (and then ultimately onto the Garmin device). I do know about the URLs below, but each has its issues.

What is Garmin BaseCamp? Garmin BaseCamp is a free mapping program available as a download from the. We use Garmin BaseCamp to transfer our snowmobile and ATV trail maps, routes and waypoints to your GPS device. BaseCamp lets you plan snowmobile and ATV trips then replay your rides, display geotagged photos and share it all with your friends. With BaseCamp, you can manage your waypoints and tracks on your computer for future trip planning.

Plan a snowmobile or ATV ride Planning a trip with BaseCamp is quick and easy. Plan a quick loop or a multi-day expedition. Calculating distance between food and gas is a breeze. Before planning your first trip you should setup an activity and then set the routing preferences.

Select the Edit -> Options menu. Pitch switch free download full version. Select the ' Activity Profile' options. You will notice in the pulldown that BaseCamp provides a default ATV activity but not one for snowmobiling.

That’s ok, we can create one. To add a new activity, click the green + box next to the activity pulldown. Enter the name “Snowmobile”. If you have your own snowmobile image you can download it for your new activity type. Now you can set routing preferences for both your ATV or Snowmobile activity by selecting the Routing tab. The Route Preference attribute should always be set to “ Shorter Distance” and NO Avoidances should be checked off. These routing settings should be replicated on your actual GPS as well.

The Speed Customization section does not apply to your GPS trail maps. NOTE: Setting routing preferences in BaseCamp does not effect the Routing preferences on your GPS. Routing preferences for the GPS must be set on the GPS itself, however a route created in BaseCamp and transfered to your GPS will not be recalculated based on GPS settings, it will remain as calculated in BaseCamp. You do not need to create/use special ATV and Snowmobiling activities, it's simply a way to organize your activity profiles. What's important is the actual settings on the Routing tab, not the activity name.

Now that you have your activity profiles setup you can begin your trip planning. You will need to select the map that provides the ATV or snowmobile trails. From the Maps menu, select either the GPS Trailmasters ATV map or the GPS Trailmasters Snowmobile map. Next you will need to create a place within BaseCamp to store the routes. In the upper portion of the Library and Devices area is where you will find lists under My Collection.

To create a new list for your routes, click File -> New -> List. Enter the name of your new list. Make sure your new list is selected before creating a new route. As Garmin continues to update the BaseCamp software, the way routes are created is being improved. There are actually three different ways to create a route for your trip.

The Trip Planner tool is the first way. The Trip Planner tool is geared towards a very regimented multi-day trip but can be used nonetheless to plan your afternoon ATV or snowmobile trip as well. The Trip Planner will search cities and our trail accessible points of interest but it does so based on the area of the map that is displayed, so it is important to have the GPS Trailmasters trail map zoomed out just beyond the total trip area.

From the main menu click Trip Planner -> New Trip. Make sure to uncheck the Round Trip attribute if your trip is one way. Click Continue and enter the Starting Location and the Destination. The tool will automatically search the city and POI database when you start typing in the Start or Destination box.

For example, if you type ‘B’, the tool will pull up all locations in the area starting with the letter ‘B’. This can make it easier for you to enter your trip start and destination locations. After you have set the start and destination, click Start Trip. Your route will be automatically calculated using the Shortest Distance (based on your routing preferences). Click the Exit button at the very bottom of the panel or add additional days or points of interest along the planned route.