Sheridan County Historical Map phone 850 Sibley Cir Sheridan, Wyoming 82801 Sheridan County Historical Society Museum Map phone 429 W Alger St Sheridan, Wyoming 82801 Sheridan Heritage Ctr Map phone 856 Broadway St Sheridan, Wyoming 82801 T-Rex Natural History Museum Map phone 1116 Big Horn Ave Sheridan, Wyoming 82801 Trail End Historic Ctr Map phone 400 Clarendon Ave Sheridan, Wyoming 82801