Location: SD-20 and SD-73, Perkins Cty Reassurance shield as 73 joins 20. Location: SD-20 and SD-73, Perkins Cty Six miles later, 20 will split to head east. Location: SD-20 and SD-73, Perkins Cty Stay straight for 73 south. Turn left for 20 east. Location: SD-20 and SD-73, Perkins Cty Stay straight for 73 south. Turn … Continue reading South Dakota Highway 73, SD-20 to SD-20