Wyoming Highway 321

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Wyoming Highway 321 marker

Wyoming Highway 321
Interstate 25 Business
Route information
Maintained by WYDOT
Length3.34 mi[1] (5.38 km)
Major junctions
South end I-25 / US 87 / WYO 211 in Chugwater
  WYO 313 in Chugwater
North end I-25 / US 87 north of Chugwater
Highway system
WYO 320WYO 322

Wyoming Highway 321 is a north–south Wyoming State Road that is partially known as TY Basin Road and 1st Street and was once part of the Old Yellowstone Highway. WYO 321 travels from the junction with I-25/US 87/WYO 211, meets Wyoming Highway 313, and heads north to I-25/US 87 at exit 57 just north of Chugwater (Ty Basin Interchange). Wyoming Highway 321 was originally U.S. Highway 87, and its interchanges with I-25 are signed as I-25 Business.

Route description[edit]

WYO 321 begins at a diamond interchange with concurrent highways I-25 and US 87 on the south side of Chugwater. The highway passes the Chugwater rest area and turns north at TY Basin Road, After passing its junction with WYO 313, it heads out of town, paralleling I-25 until its northern terminus at exit 57.[2]

Major intersections[edit]

The entire route is in Platte County. [1]

Chugwater0.0000.000 I-25 / US 87 / WYO 211 – Cheyenne, WheatlandSouthern terminus of WYO 321; northern terminus of WYO 211; exit 54 on I-25; highway continues as WYO 211
0.590.95 WYO 313 (Lone Tree Road)Western terminus of WYO 313
3.345.38 I-25 / US 87Northern terminus of WYO 321; exit 57 on I-25; road continues as TY Basin Road
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
  •       Route transition


  1. ^ a b Maintenance Staff (February 11, 2013). "Maintenance Section Reference Book" (PDF). Wyoming Department of Transportation. WYDOT. p. 136. Retrieved December 23, 2013.
  2. ^ Google (December 23, 2013). "WYO 321" (Map). Google Maps. Google. Retrieved December 23, 2013.
  • Official 2003 State Highway Map of Wyoming

External links[edit]

Route map:

KML is from Wikidata