AMP: 75 Location: I-90 and I-90 Business, Mineral Cty Reassurance shield after the business loop split. AMP: 76 Location: I-90 and Petty Creek Rd, Mineral Cty Just after that, we’ll approach the other end of I-90 Business, now signed as S-507. AMP: 77 Location: I-90 and Petty Creek Rd, Mineral Cty Exit for S-507/I-90 Business as we enter … Continue reading Interstate 90, I-90 Bus/S-507 to I-90 Bus/S-507