U.S. Route 18
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| Route information | |
| Length: | 1,043 mi (1,679 km) |
| Existed: | 1926 – present |
| Major junctions | |
| West end: |
    I-25 / US 20 / US 26 / US 87 at Orin, WY
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 I-43 at Milwaukee, WI
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| East end: | Lincoln Memorial Drive in Milwaukee, WI |
| Location | |
| States: | Wyoming, South Dakota, Iowa, Wisconsin |
| Highway system | |
I-29 near Worthing, SD
I-35 at Clear Lake, IA
I-39 / I-90 at Madison, WI
I-94 at Waukesha, WI
...
Wikipedia