Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Added part of the 1960 extension of SR 65.
Added missing US 180 and SR 77 name tag.
Fixed date problems on the old pre-1988 Little Colorado River Bridge on US 180/SR 77.
Added part of post-1938 Fairview Avenue
Added part of US 180 between 1961 and 1985/1988
Added part of US 180 between 1961 and 1985/1988
Added the 1962 Extension of SR 77.
Added part of US 180 between 1961 and 1985/1988
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.
Adding alignments of U.S. Route 66.