I'm leaving on a family trip to Yellowstone and Big Sky Montana. I'd like to do some bike riding while I'm there. I think I'm going to try to convince some of the others coming with us to do a little casual bike ride around the Old Faithful area (there's a bike rental at the lodge there.) When we're in Big Sky, I'd like to do some road riding on my own. I've found two shops in the town of Big Sky that rent road bikes. Just wondering if there's anyone familiar with the area that can recommend a nice route to take, or sights to see while I'm there. My starting point will be about a mile northeast of town. I'm looking for a route maybe 30-50 miles long (maybe longer if I can get enough time to myself). I'm not a super strong rider, but I'm reasonably fit. My regular commute home is 12 miles with about 1000ft of climbing. My most recent longish ride was 35 miles around Deep Creek lake in western Maryland with 2600 ft of climbing and some 9-10% grades. I appreciate any suggestions!