The Old Avion is heading for the Dakotas - advice?

We're camped tonight at Custer State Park, S.D. The weather has been spectacular with cobalt blue skies, 70 degrees during the day and light winds. It's on the edge of Fall with bright yellow leaves mixed with ruddy reds. We go to the buffalo round up at dawn tomorrow. What a sight that will be with whooping Cowboys and thousands of lumbering Bison...clouds of dust in the morning sun!