I-90 east at Exit 56B - I-25 South. US-87 leaves I-90 here, and follows I-25 south. This is the northern terminus of I-25.
I-90 East - Use Exit 56B For US-16
I-90 east approaching Exit 56B. Use I-25 south for US-16 jct. in Buffalo.
I-90 East - Exit 56B
I-90 east at Exit 56B - I-25/US-87 South/Casper. I-90 continues east to Gillette. US-87 leaves I-90 here and follows I-25 south to Casper. This is the northern end of I-25.