here is a pdf source http://www.countyengineers.org/Template.cfm?Section=Publications&template=/ContentManagement/ContentDisplay.cfm&ContentID=27230
The distance is 745 road miles from the CA state line to the TX state line.
About 2,240 road miles.
Montana has approximately 71,000 miles of public roads.
The distance is about 1,821 road miles from one state line to the other.
The distance between Connecticut's state line and South Carolina's state line is about 635 road miles.
Approximately 2,290 road miles.
The distance is 1,031 road miles from the Louisiana state line to Harrisburg.
The driving distance from Clio, Michigan to the PA state line is about 300 road miles.
The road distance from New York City to Ohio varies depending on the specific locations, but it is approximately 500-650 miles by car.
The distance between Indiana's state line and Columbus OH is about 119 road miles.
The driving distance from the Idaho state line to Calgary, Alberta Canada is 454 road miles.
The distance between Charlotte NC and the New York state line is about 641 road miles.