Interstate 90 Exit List

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Interstate 90 Wyoming

Exit Number Route Number Road Name Notes
Milepost 0   Speed Limit 75 Welcome to Wyoming, Like No Place on Earth/Forever West
  WELCOME TO SHERIDAN COUNTY!
  EAST SOUTH
Exit 1 Sheridan County Route 65 TO Parkman
Barker Road		 County routes are seldom signed off Interstate highways in Wyoming. An exception is the County Road 402 exit off I-80 near Elk Mountain.
Exit 9 Ranchester Greybull Yellowstone-Grand Teton National Parks via
Bighorn National Forest and Medicine Wheel via
  EAST SOUTH
Exit 14 NORTH Monarch
Kleenburn
Acme Road		 For Historic , use between Montana State Line and Exit 14.
Exit 16 Sheridan County Route 110 Monarch Road TO For , use County Route 110 to between exits 14 and 20.
Milepost 16     Parking Area
Exit 20
TO 		Sheridan Main Street; Port of Entry Locals like to claim that the best year-round weather in the state is in Sheridan County.
Exit 23 Fifth Avenue to downtown Sheridan Trail End State Historic Park; State of Wyoming Information Center and Rest Area
Exit 25
Coffeen Avenue to Sheridan and Ucross Sheridan County Regional Airport via and . returns to at Exit 128.
  EAST
Milepost 31     Parking Area
Exit 33 Sheridan County Route 131 Meade Creek Road  
Exit 37 Sheridan County Routes 32 and 34 Banner; Story; Prairie Dog Creek Road  
Milepost 42 WELCOME TO JOHNSON COUNTY!
Exit 44 Story; Banner Fort Phil Kearney State Historic Site. Use Johnson County Route 23
SOUTH for between Exits 44 and 56A. South of Buffalo, HISTORIC continues as .
  EAST SOUTH
Exit 47 Johnson County Route 262 Shell Creek Road; Lake De Smet  
Exit 51 Lake De Smet; Lake Ridge Road    
Exit 53 Johnson County Route 1 Rock Creek Road  
Exit 56A Buffalo; Johnson County Regional Airport provides the business conection into Buffalo. north of Buffalo is signed as "To and To " heading north/westbound, but it is signed as heading south/eastbound.
Exit 56B Use Interstate 25 south to Casper, Cheyenne, Fort Collins, Denver, Colorado Springs, Pueblo, Trinidad, Santa Fe, Albuquerque, Las Cruces This is one of three Interstate-to-Interstate connections in the state of Wyoming. The directional-T interchange here is the only multi-level junction in the entire state. U.S. 87 leaves I-90 and begins its southeastern trek toward Texas via Southeastern Wyoming, Colorado and New Mexico.
  EAST
Exit 58 Buffalo and Ucross U.S. 16 provides a slower-paced, less-traveled alternative to I-90. To Cloud Peak Skyway via west, use Exit 58.
Milepost 61 Eastbound Only   Parking Area
Exit 65 Johnson County Route 114 Red Hills Road; Tiperary Road  
Milepost 68 Westbound Only   Parking Area
Exit 73 Johnson County Route 204 TW Road; Crazy Woman Creek Road  
Exit 77 Johnson County Route 204 Schoonover Road; TW Road  
Exit 82 Indian Creek Road    
Exit 88 Johnson County Route 195 Upper Powder River Road REST AREA
Exit 91 Johnson County Route 158 Dead Horse Creek Road  
Milepost 96 WELCOME TO CAMPBELL COUNTY!
Exit 102 TO Campbell County Route 19 TO Buffalo Cut Across Road (Campbell County Route 18) Buffalo Cut Across Road in Campbell County is the same as TW Road in Johnson County. The county route numbers also change.
Exit 106 Campbell County Routes 20 and 63 Barlow Road; Kingsbury Road  
Milepost 110     Parking Area
Exit 113 Campbell County Routes 32, 35, and 106 Wild Horse Road TO Lowery Road
Exit 116 Campbell County Route 32 Force Road  
Exit 124
TO 		Gillette; Ucross; Weston Welcome to Gillette, the Energy Capital of the United States. Eastbound travelers are about to enter the Black Hills region of Northeastern Wyoming. Westbound travelers are in the Powder River Basin.
 
Exit 126 SOUTH Wright, Douglas  
Exit 128
Gillette Use for via Rozet between Exits 128 and 153.
Exit 129 Campbell County Route 38 Garner Lake Road Signed as Truck Wyoming 59 south of Wyoming 51
Exit 132 Campbell County Route 3 American Road Wyodak  
Exit 141 Campbell County Route 1 Adon Road Rozet  
Milepost 149 WELCOME TO CROOK COUNTY!
Exit 153
Moorcroft; Newcastle; Carlile; Devils Tower National Monument Rest Area
  EAST
Exit 154 Moorcroft; Pine Haven Gas, food, and lodging are available in Moorcroft.
Exit 160   Wind Creek Road  
Milepost 163     Parking Area
Exit 165 Crook County Route 205 to Wyoming 113 Pine Ridge Road Keyhole Reservoir State Park
Exit 172 Crook County Route 151 Inyan Kara Creek Road  
Milepost 177     Parking Area
Exit 178 Crook County Route 120 and Crook County Route 217 Coal Divide Road to Old Sundance Road; Beaver Creek Road  
Exit 185 Sundance; Devils Tower National Monument; Upton U.S. 14 does not actually go to Devils Tower, but it provides the most direct connection from I-90 to WYO 24 and WYO 110, which spurs into the national monument. Heading eastbound, this exit is signed as "TO ."
  EAST
Exit 187 SOUTH Sundance; Newcastle Rest Area
Exit 189 Sundance East Interchange; Rest Area; Port of Entry  
Milepost 190     Weigh Station/Port of Entry
Exit 191 Crook County Route 207 Moskee Road Historic U.S. 14 closely parallels I-90 between Exit 189 and the South Dakota state line along a frontage road on the north side of the freeway. This is an unmarked state-maintained roadway.
Exit 199 North Aladdin; State of Wyoming Information Center and Rest Area Use Wyoming 111 north to Wyoming 24. The welcome center at this interchange opened in 2010 and is well worth the visit.
Exit 205 Crook County Route 142 Beulah Redwater Road; Lower Creek Road This is the final interchange in Wyoming. After Beulah, motorists enter South Dakota, heading through the rest of the Black Hills toward the Great Plains.