Location: SD-79 and SD-36, Custer Cty Hey, a correct US-18 shield! 33 miles to US-18. Location: SD-79 and SD-36, Custer Cty Reassurance shield after the 36 junction. Location: SD-79 and CR 13, Custer Cty Reassurance shield a few miles later. Location: SD-79 and CR 14, Custer Cty Reassurance shield a few miles later after the … Continue reading South Dakota Highway 79, SD-36 to US-18/US-385