Added the National Old Trails Road through Yucca.

Changed Yucca and Oatman back to towns.

Changed Yucca, Goldroad and Oatman to villages.

Added missing date on an exit ramp.

Modified dates on Yucca Streets.

Modified a crucial date on Beale Street

Modified end dates on Route 66 and added I-40 between McConnico and Kingman.

Modified end dates on Route 66 and added I-40 between McConnico and Kingman.

Extended Oatman Highway

Adding I-40 between Kingman and Topock and added the town of Yucca.

Adding I-40 between Kingman and Topock.

Modified end dates on Route 66.

Fixed the US 66 Yucca Bypass to be entirely aligned along the 1952 roadway.

Fixed the US 66 Yucca Bypass to be entirely aligned along the 1952 roadway.

Modified end dates on Route 66.

Added I-40 Business and Historic US 66.

Extended the ATSF railroad.

Extended the ATSF railroad.

Added start date to Old Trails Road.

Modified end date on Louise Avenue from 1969 to 1968.