What a day, we left Missoula a little later than we wanted, but we had to go in and fill our propane tank. We have learned to use this product with a little better control. And besides that, we found it “on sale”…$.99 a gallon and it only took 8 ½ gallons. Wouldn’t you know it, when you find a real good deal, you only need such a little amount. We’re now heading towards Yellowstone. We took a break at the 6,500’ summit just outside of Butte, which was also the Continental Divide. The day was absolutely a Montana Big Sky Day… It was a day that allowed us to make a detour when and if they presented themselves. As it was, we followed two. The first one took us from I 90 on to Montana 1. The road took us along the “scenic route”, with a river, rolling hills that turned into rough and tumble jagged hills that stretched high into the sky from the river bottom. A spectacular waterfall came tumbling down from an earthen dam which we found out made up Georgetown Lake. This lake was high up in the mountains, and really one of the prettiest you can find anywhere. The other one presented itself a little later when we headed off to “Lewis and Clark Cavern State Park”. We had no idea what that was, but we were going to find out. The route to the park was on a small winding and twisting road, a beautiful stream following each turn of the wheel and a HUGE cave on the side of one of the hills above us. Just beyond this cave we came to area of the “Cavern State Park” and we found that they also had a campground. This really worked out great, as it was getting to the point that we wanted to settle down for the night. We soon found out that the campground was just a small bit of what we had gotten ourselves into. Those “Cavern’s” that make-up the full name of “Lewis and Clark Cavern State Park” turned out to be one of those special jewels that come out of the dark just when you don’t expect it. 3 miles straight (a lot of winding and twisting) up the mountain from the gate of the campground, we found the visitors center and the starting point of the guided tour of the cavern. With our journey through Europe, we had a chance to see some wonderful caves and caverns, but this one…WOW !!! It is something very special. Heck, it was a 2 ½ hour tour with one incredible sight after another for the whole 2 ½ hours. We are still talking about this one !!! If you are ever in the area, make sure you see it…you will thank me. Oh yes, the campground is very nice as well. It is a State Park without “hook-ups”, but the rest of it is wonderful if you don’t need the electricity and TV (for those of us without a satellite dish)….