Minnesota State Highway 66
highway in Minnesota

Minnesota State Highway 66 (MN 66) was a highway in south-central Minnesota, which ran from its intersection with Blue Earth County Roads 1 and 10 near Good Thunder and continued north to its northern terminus at its interchange with U.S. Highway 169 / State Highway 60 in the city of Mankato. The highway is currently known as Blue Earth County Road 1 (CSAH 1).
Highway 66 was 12 miles (19 km) in length.
Route description
Highway 66 served as a north–south route between Mankato and Good Thunder in south-central Minnesota, although it did not actually enter the latter city.
Highway 66 followed Carney Avenue in the city of Mankato.
The route passed near the town of Skyline, adjacent to Mankato.
Highway 66 crossed the Le Sueur River, south of Mankato.
The route paralleled the Maple River near Good Thunder.
The highway was legally defined as Legislative Route 256 in the Minnesota Statutes. It was not marked with this number.
The public source identifies “Minnesota State Highway 66” as highway in Minnesota. This brief keeps that definition visible, then builds a research path around Minnesota, State and Highway.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Apr 24, 2025. The linked authority identifier is Q2484597. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
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This entry incorporates text from “Minnesota State Highway 66” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.