State highways are the primary and secondary roads that link cities within a state. Each state is responsible for route numbering and layout, so routes can vary from state to state.
The default marker for state highways is a white circle with a black number, but each state is free to choose a different marker. Many states have chosen a design theme relevant to the state, such as an outline of the state itself, to distinguish state route markers from interstate, county, or municipal route markers.
State highways are an important part of the transportation system in the United States. They provide a way for people to travel between cities and towns, and they also help to connect rural areas to the rest of the country.
Alabama 
Arizona 
Arkansas 
California 
Colorado 
Indiana 
Kansas 
Kentucky 
Louisiana
Maine 
Mississippi 
Missouri 
New Mexico
Ohio 
Oklahoma
South Dakota 
Tennessee
Texas 
Utah 
http://youtu.be/P-LcYKfugdk Ride south on Arkansas HIghway 365 from the main intersection in Redfield to just inside the White Hall city limits, approximately 15 miles to the south. Cephelopod - Cephelopod by Kevin MacLeod is licensed under a Creative Commons...
Ride Along Arkansas Highway 338 (Dixon Rd) from Interstate 530 to Arkansas 365 in Sweet Home, Arkansas
Ride Arkansas Highway 440 north from Interstate 40 in North Little Rock to Jacksonville at U.S. Highway 67 and U.S. Highway 167