Wyoming Highway 270

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Wyoming Highway 270 marker

Wyoming Highway 270
Route information
Maintained by WYDOT
Length: 73.37 mi[1] (118.08 km)
Major junctions
South end: US 26 in Guernsey
  US 18 / US 20 in Manville
North end: US 18 / US 85
Counties: Platte, Niobrara
Highway system

State highways in Wyoming

WYO 259 WYO 271
WYO 317 WY-318.svg WYO 319

Wyoming Highway 270 is a north–south Wyoming State Road located in northeastern Platte County and southwestern Niobrara County.

Route description[edit]

Guernsey to Manville[edit]

Ranch road leaving Highway 270

Wyoming Highway 270 starts at its southern end in Platte County at US 26 on the eastern edge of Guernsey. From here Highway 270 heads north as Hartville Highway on its way to the town of the same name. WYO 270 reaches Hartville at approximately 4.5 miles, and intersects the western terminus of Wyoming Highway 318 (Main Street).[1] Wyoming Highway 270 continues north, leaving Hartville to head north to Manville and Lance Creek.[2] At almost 40 miles, WYO 270 intersects US 18/US 20 just before entering Manville. Upon entering Manville, the former Wyoming Highway 274 (9th Avenue) is intersected. Highway 274 was designated for the old alignment of US 18/US 20, but was decommissioned in the early 1990s.[2]

Manville to End[edit]

North of Manville, Highway 270 heads to Lance Creek and intersects the eastern terminus of Wyoming Highway 271 (Twentymile Road).[1] Wyoming Highway 270 then begins to turn east as the last length of its routing is primarily east–west. Wyoming Highway 272 (N. Lance Creek Road) is intersected at just under 61 miles. At just over 73 miles, WYO 270 reaches its northern (or eastern) end at US 18/US 85 north of Lusk.[1][2]


The section of Wyoming Highway 270 from US 26 at Guernsey north to Hartville at present day Wyoming Highway 318 was formerly designated as Wyoming Highway 318 prior to the 1970s. Highway 318 used to begin as US 26 at Guernsey and end at Sunrise with a 90 degree turn at Hartville. The stretch between Guernsey and Hartville was recommissioned as Wyoming Highway 270 when that road was completed between Manville and Hartville.[3]

Major intersections[edit]

County Location mi km Destinations Notes
Platte Guernsey 0.00 0.00 US 26 Southern terminus WYO 270
Hartville 4.53 7.29 WYO 318 Western terminus WYO 318
Niobrara Manville 39.55 63.65 US 18 / US 20
39.82 64.08 9th Avenue Former routing of WYO 274
Lance Creek 57.97 93.29 WYO 271 Eastern terminus WYO 271
Northeast of Lance Creek 60.73 97.74 WYO 272 Southern terminus WYO 272
  73.37 118.08 US 18 / US 85 Northern terminus WYO 270
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  • Official 2003 State Highway Map of Wyoming

External links[edit]