Custer State Park in the Black Hills encompasses 71,000 acres of spectacular terrain and an abundance of wildlife. The Custer State Park Wildlife Loop ride was lots of fun for both of us, although we had to be very careful as we encountered lots of animals along the road, and many crossed right in front of us. A herd of 1,500 bison roams freely throughout the park, often stopping traffic along the 18-mile Wildlife Loop Road. The herd is one of the largest publically-owned herds in the world. Bison can weigh as much as 2,000 pounds so they are not to be messed with at all! As large as the bison are, we certainly did not want to encounter them too closely! Besides bison, the park is home to wildlife such as pronghorn antelope, mountain goats, bighorn sheep, deer, elk, wild turkeys, and a band of friendly burros. We saw some big horn sheep, mountain goats, prairie dogs, ground squirrels, bison, pronghorn, and even the begging burros!