Interstate Shields, US-Highway Shields, Minnesota-Highway Shields, and Pentagon County Shields I did not create myself. I credit Adam Froehlig, or "Froggie" for his handy work in creating these shields.
Froggie's Website.
Lengths of Highways I found on MN/Dot's Trunk Highway Logpoint Listing
Trunk Highway Logpoint Listing by MN/Dot
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