AMP: 0 Location: Lake Hwy and MT-16, Sheridan Cty Reassurance shield as S-573 begins. AMP: 10 Location: Lake Hwy and 10 Mile Rd, Sheridan Cty Reassurance shield ten miles into S-573. AMP: 14 Location: Lake Hwy and South Dagmar Rd, Sheridan Cty Four miles later, we’ll come to the end of S-573 at South Dagmar Rd/Sheridan CR 516 (which … Continue reading Montana Secondary Highway 573, MT-16 to South Dagmar Rd