Editing Interstate 90 (section)

===Wyoming===
{{Main|Interstate 90 in Wyoming}}
[[File:Sheridan.JPG|thumb|View of southern [[Sheridan, Wyoming]], from I-90|alt=A multi-story building named the "Mill Inn" and tall grain elevator, seen from an elevated vantage point]]

I-90 serves a portion of northeastern Wyoming that is primarily rural.<ref>{{cite news |date=August 21, 2015 |title=Speed limit upped to 80 mph on part of I-90 in NE Wyoming |url=https://www.argusleader.com/story/news/2015/08/21/speed-limit-upped-mph-part-ne-wyoming/32103899/ |work=[[Argus Leader]] |location=Sioux Falls |agency=Associated Press |accessdate=November 29, 2021}}</ref> The freeway, briefly concurrent to [[U.S. Route 14|US&nbsp;14]], travels southeast along a series of creeks to [[Sheridan, Wyoming|Sheridan]] in the northeastern foothills of the [[Bighorn Mountains]]. I-90 and US&nbsp;87 split in Sheridan and travel parallel to each other to [[Fort Phil Kearny]], where they rejoin and continue south past [[Lake Desmet]] to [[Buffalo, Wyoming|Buffalo]]. The highways split again near Buffalo at a junction with [[Interstate 25|I-25]], which overlaps with US&nbsp;87 to [[Casper, Wyoming|Casper]].<ref name="WY-Map">{{cite map |author=Public Affairs Office |year=2011 |title=Wyoming Highway Map |url=https://ss-usa.s3.amazonaws.com/c/308475559/media/77046075a7b15c06968218036445366/Wyoming%20map%20side_v2.pdf |scale=1 inch = approx. 18 miles |location=Cheyenne |publisher=[[Wyoming Department of Transportation]] |via=[[Wyoming Office of Tourism]] |access-date=November 29, 2021 |archive-date=October 3, 2021 |archive-url=https://web.archive.org/web/20211003035101/https://ss-usa.s3.amazonaws.com/c/308475559/media/77046075a7b15c06968218036445366/Wyoming%20map%20side_v2.pdf |url-status=live }}</ref>

From Buffalo, the highway turns east to cross the [[Powder River Basin]], a region with several large coal mines.<ref>{{cite news |last=Learn |first=Scott |date=July 1, 2012 |title=Coal clash: The Powder River Basin, where coal is king |url=https://www.oregonlive.com/environment/2012/06/coal_clash_out_of_the_gigantic.html |work=[[The Oregonian]] |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129094519/https://www.oregonlive.com/environment/2012/06/coal_clash_out_of_the_gigantic.html |url-status=live }}</ref> I-90 then reaches [[Gillette, Wyoming|Gillette]], where it begins a concurrency with US&nbsp;14 and [[U.S. Route 16|US&nbsp;16]] to a three-way split in [[Moorcroft, Wyoming|Moorcroft]]. The freeway continues into the [[Bear Lodge Mountains]] (part of the [[Black Hills]]) and is rejoined in [[Sundance, Wyoming|Sundance]] by US&nbsp;14, which looped north to serve the [[Devils Tower]].<ref>{{cite news |last=Eldredge |first=Kay |date=August 29, 1982 |title=The Spell of Devils Tower |at=sec. 10, p. 25 |url=https://www.nytimes.com/1982/08/29/travel/the-spell-of-devils-tower.html |work=The New York Times |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129102103/https://www.nytimes.com/1982/08/29/travel/the-spell-of-devils-tower.html |url-status=live }}</ref> I-90/US&nbsp;14 then continues northeast to [[Beulah, Wyoming|Beulah]], where it enters [[South Dakota]].<ref name="WY-Map"/>