AMP: 16 Location: I-90 and WYO 339, Sheridan Cty Reassurance shield after the WYO 339 interchange AMP: 19 Location: I-90 and Main St, Sheridan Cty Junction I-90 Business coming up in 1 mile, which serves downtown Sheridan AMP: 20 Location: I-90 and Main St, Sheridan Exit for I-90 Business. Although not marked (an oddity for … Continue reading Interstate 90, WYO 339 to I-90 Bus/US-87/US-14 Bus