These Wyoming highway maps are the original reason I homesteaded this site, and started teaching myself about building web pages in the first place. I was browsing through Andy Field's Wyoming Highways pages in 1997, and I came across a page where he said he wished he had some highway maps to go along with all the text he had written about them. As a cartographer, I wanted to gain experience in creating maps for the Web, so I contacted him. We e-mailed back and forth for several months, working on this project in our spare time - and the maps indexed here are the result. If you're looking for more about Wyoming highways than just maps, I'd recommend that you start at Andy's site. It's very thorough and well-researched, and his pages provide links to my maps wherever appropriate.

Legend for the "Wyoming highway routes" chart below:

"Main" US highways (1- or 2-digit numbers) are highlighted in blue, and are listed numerically (there are two exceptions; see below).

"Branches" of main highways (3-digit numbers and Alternate routes) are highlighted in light blue - and are listed under their "parent" highway. If you are looking for a particular 3-digit US highway, but don't know its "parent" - just take the last two digits. For example, the last two digits in US 310 are "10" - so its "parent" highway is US 10.

Two routes that have never served Wyoming (US 10 and US 91) are highlighted in pink. They are listed only because one each of their "offspring" (US 310 and US 191) do serve Wyoming.

Links highlighted in green go to maps showing the current route of each highway.

Any links highlighted in yellow go to maps showing historic route(s) for a highway.

The legend for this chart is above.

Wyoming highway route	Click for a map showing the route during the years listed:
US 10	(Never served Wyoming)
US 310	1926 - present
US 12	1940 - 1960
US 212	1962 - present
US 312	1960 - 1962
US 14	1936 - 1940
	1940 - 1957
	1957 - present
US 14 A	1965 - present
US 16	1926 - 1936
	1936 - 1965
	1965 - present
US 116	1926 - 1936
US 216	1931 - 1936
US 18	1926 - 1970
	1970 - present
US 20	1926 - 1942
	1942 - present
US 320	1926 - 1938
US 420	1926 - 1936
US 26	1926 - 1950
	1950 - present
US 30	1926 - 1972
	1972 - present
US 30 N	1926 - 1972
US 30 S	1926 - 1972
US 85	1926 - present
US 85 A	1937 - 1945?
US 185	1926 - 1936
US 285	1926 - 1936
US 87	1926 - 1936
	1936 - 1940
	1940 - 1960
	1960 - 1982
	1982 - present
US 87 E	1926 - 1936
US 87 W	1926 - 1936
US 187	1926 - 1936
	1936 - 1940
	1940 - 1960
	1960 - 1982
US 287	1936 - 1940
	1940 - 1960
	1960 - 1982
	1982 - present
US 89	1936 - 1939
	1939 - present
US 189	1939 - present
US 91	(Never served Wyoming)
US 191	1926 - 1982
	1982 - present
I-25	1956 - present
I-80	1956 - present
I-90	1956 - present