Cracker Barrel restaurants have some of the best redeye gravy. Not sure if y'all have those in WY or not.
Redeye gravy is made from the drippings in the frying pan from salt cured ham. Some add coffee as the liquid to the pan to loosen up the stuck pieces on the bottom of the pan. ME.... I ain't never been able to make it right! but is is truly a Southern thing.