AMP: 38 Location: SH-22 and SH-28, Clark Cty Ugly reassurance shield after the 28 junction. Butte, Mont. makes its debut as a control city in the distance. AMP: 40 Location: SH-22 and 19-B Rd, Clark Cty Reassurance shield after a turnoff to a fairly large ranching operation. AMP: 42 Location: SH-22 at the Clark Cty … Continue reading Idaho State Highway 22, SH-28 to I-15