Site Navigation Arizona Colorado Idaho Montana Nevada New Mexico Utah Wyoming     Interstate 90 Westbound - Sheridan County Index of Interstate 90 Wyoming Links Index and Guide Eastbound - Sheridan County Eastbound - Johnson County Eastbound - Campbell County Eastbound - Crook County Westbound - Crook County Westbound - Campbell County Westbound - Johnson County Westbound - Sheridan County Exit Guide Business Loop - Sheridan Business Loop - Buffalo Business Loop - Gillette Business Loop - Moorcroft Business Loop - Sundance Interstate 90 Business Loops in Wyoming - Junction Lists Photo Gallery Interstate 90 West and U.S. 87 North From westbound Interstate 90 and northbound U.S. 87, use Exit 9 (Junction U.S. 14 west to Alternate U.S. 14 west) to reach Yellowstone and Grand Teton National Parks. Photo taken 09/03/04. Page Updated September 22, 2005.