I-90 East - Distance Marker
Distance marker on I-90 east to Beulah, and Spearfish, SD. Taken just east of WY-111 junction.
I-90 East - Exit 199
I-90 east at Exit 199 - WY-111/Aladdin.
I-90 West at WY-111
I-90 west offramp (Exit 199) at WY-111. Use WY-111 north for Alladin, Heulett, and Devils Tower (National Monument).
End WY-111 South at I-90 (Exit 199)
WY-111 south at I-90/US-14 (Exit 199). Use I-90/US-14 East for Beulah; west for Sundance.