Another neat feature on MapCreate is corridor mapping. I'm planning a trip to Seattle via the Oregon coast, then over to Glacier NP along the Canadian boarder, then turning south and returning via Hyw 89. I can define a corridor along my route at what ever width I chose - right now it's set for 50 miles wide from centerline. I can fit the entire trip onto a single SD card with room to spare. Areas of interest can be included in larger detail on the same card too. So far I've managed to include a few miles of dirt road exploration everyday along the route, and will be avoiding the interstates when practical.