Clicking the map icons will give you a large scaled map showing all known historic alignments including those of US66's predecessors.   

The color is the clue to the road's evolution over the years - RED: 1920's alignments, BROWN: 1930's alignments, GREEN: 1940's and later non-interstate alignments - BLUE: Interstate alignment as US66. YELLOW shows the predecessors which were never US66. That is:

POT: Pontiac Trail in Illinois, OZT: Ozark Trail in Missouri and Oklahoma, SFT: Santa Fe / Pecos Trail in New Mexico, CAM: CAmino Real in New Mexico, NOT: National Old Trails from New Mexico to California.

All alignments are dated, showing the Mother Road designation as US66 as far as known today. The color of the date boxes correspond to the related alignments.

Please click here for further explanation

Solid lines: existing, drivable road - you can use your Sedan; Dashed lines: existing, driving requires experience and proper equipment like 4WD;  Dotted lines: not drivable, abandoned, blocked as private property or not existing anymore, some dotted roadbeds are open to hiking or biking.

There are some yellow dots showing attractions, historical sites etc. RR means Railroad (in use or abandoned), PWL powerlines, PL pipelines (where is useful for orientation).


The maps are based on 5 years field research of my own, official sources like USGS  and DOT, historic maps, personal interviews etc.

Courtesy by Jane Lee, Swa Frantzen, Frank Maloney, Angel Delgadillo, Scott Piotrowski, Jim Ross, Jerry McClanahan, Ernie Edwards for detailed information on some difficult stretches.

There are lot of state related books on Route66 available - please refer to the "Route66 associations" which are present along US66 or  appropriate bookshops.