Site Navigation Arizona Colorado Idaho Montana Nevada New Mexico Utah Wyoming     Business Loop I-25 - Douglas Index of Interstate 25 Wyoming Links Index and Guide Northbound - Laramie County Northbound - Platte County Northbound - Converse County Northbound - Natrona County Northbound - Johnson County Southbound - Johnson County Southbound - Natrona County Southbound - Converse County Southbound - Platte County Southbound - Laramie County Exit Guide Business Loop - Cheyenne Business Loop - Chugwater Business Loop - Wheatland Business Loop - Douglas Business Loop - Glenrock Business Loop - Casper Business Loop - Buffalo Interstate 25 Wyoming Business Loops - Junction Lists Routing In Douglas, Business Loop I-25 follows Old U.S. 20-26-87 along West Yellowstone Highway, Fourth Street, and Richards Street. This do not enter sign is posted on the business loop in Douglas near the Interstate 25 interchange. Photo taken 09/01/04. Mileage Table and Junction List Signed Route Milepost Number Description State Control Route Distance Overall Mileage Bus 135.47 Junction (MP 135.47) 58 0.00 0.00 135.47 Begin Bus 58 0.00 0.00 135.83 End Divided Section 58 0.36 0.36 135.93 ECL Douglas 58 0.10 0.46 138.76 Begin Four Lane Section 58 2.83 3.29 138.94 End Four Lane Section; At grade railroad crossing 58 0.18 3.47 139.46 North Platte River 58 0.52 3.99 140.08 Junction North South 58 0.62 4.61 140.08 WCL Douglas 58 0.00 4.61 140.44 Junction (MP 140.10) 58 0.36 4.97 140.44 End Bus 58 0.00 4.97 Page Updated October 3, 2005.