Bear Country USA is more or less a wildlife refuge. Most of the animals roam free throughout the compound, though some are caged. Generally, it's the predatory animals that are caged, such as large cats, foxes and wolves. Animals such as the bighorn sheep, mountain goats, elk, reindeer and deer were free to roam about, as were the various types of bear.
It seems that it took about an hour and a half or so to drive through the compound. For the most part, the animals were close enough for viewing, but in some instances they were difficult to find.