The overland site lists the Wild Rivers Discovery trail as 231 miles. Is that route from the beginning to end of the route shown on the map, which I assume to be the GPS route. I'm planning that trip in July on a motorcycle, so the accuracy of the mileage estimate is important to me. My range should be 260+ miles, possibly up to 300 at the slower speeds I'm expecting. I'll need to get from the closest gas at the north end around to the closest gas to the south end.