Wyoming Highway 320 is a north–south state road in central Platte County, Wyoming that connects I-25 Business and US 87 Business in Wheatland. to US 26 in Dwyer, and was once part of the Yellowstone Highway.
Wyoming Highway 320 begins its south end at I-25 Business/US 87 Business (9th Street/Swanson Road) in Wheatland. From here WYO 320 heads north, intersecti ... more
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