AMP: 0
Location: S-320 and US-12, Fallon Cty
No reassurance shield as the highway begins. 320 is a quick spur up to Ismay.
AMP: 4
Location :S-320 at the Fallon County Line, Custer Cty
As we enter Custer County, the road picks up the CR 351 designation
AMP: 6
Location: Main St and 6th St, Ismay
S-320 ends here in Ismay at the Joe Montana Center. Ismay renamed itself “Joe” for a couple years in the 90s in order to get a new fire truck. The renaming was such a success they were able to build this community center, as well.
E to S-494, W to I-94/I-94 Bus