Wyoming Highway 173
|Buffalo Creek Road|
|Maintained by WYDOT|
|Length:||1.61 mi (2.59 km)|
|West end:||US 20 / WYO 789|
|East end:||CR 31|
Wyoming Highway 173 begins its west end at US 20/WYO 789 just over a mile and a half south of Thermopolis. Named Buffalo Creek Road, Highway 173 travels southeasterly along the south bank of the Bighorn River. At 1.42 miles, WYO 173 crosses the river via the CQA Four Mile Bridge which is listed on the U.S. National Register of Historic Places as one of forty bridges throughout Wyoming that illustrate steel truss construction. Two-tenths of a mile later WYO 173 reaches its end at County Route 31 (S. Yellowstone Road).  CR 31 continues another 1.6 miles south and returns to US 20/WYO 789.
The entire route is in Hot Springs County.
|0.00||0.00||US 20 / WYO 789||Western terminus of WYO 171|
|1.61||2.59||CR 31 (S. Yellowstone Road)||Eastern terminus of WYO 171|
|1.000 mi = 1.609 km; 1.000 km = 0.621 mi
- WYDOT (November 2004). Wyoming Department of Transportation Reference Marker Book (Map). http://www.dot.state.wy.us/webdav/site/wydot/shared/Planning/Reference%20Marker%20Book.pdf. Retrieved February 14, 2012.
- Fraser, Clayton B. (May 4, 1982). "National Register of Historic Places Inventory - Nomination Form: CQA Four Mile Bridge". National Park Service. p. 12. Retrieved 2012-02-26.
- Google Inc. "Overview Map of Wyoming Highway 173". Google Maps (Map). Cartography by Google, Inc. http://maps.google.com/maps?saddr=Buffalo+Creek+Rd&daddr=Buffalo+Creek+Rd&hl=en&ll=43.640299,-108.198509&spn=0.128701,0.308647&sll=43.602522,-108.193359&sspn=0.016098,0.038581&geocode=FfyAmQIdXK-M-Q%3BFR5LmQIdHhCN-Q&mra=me&mrsp=1,0&sz=15&t=m&z=12. Retrieved 26 February 2012.
- Wyoming @ AARoads.com - Wyoming Routes 100-199