Adding Lipan Wash from NHD iimport

Adding Big Salt Wash from NHD import

Adding Big Salt Wash from NHD import

Adding Reed Wash

Adding Coyote Wash from NHD imiport

Adding Mack Wash from NHD import

Adding Dry Canyon Wash from NHD import

Adding East Salt Creek from NHD import

Adding Badger Wash from NHD import

Adding Salt Creek from NHD import

Adding Salt Creek from NHD import

Adding McDonald Creek from NHD import

Adding US-6 west of Rifle

Adding US-6 west of Rifle

Updating I-70 CO chronology

Adding US-6

Updating I-70 CO chronology

Adding 1984-1988 I-70 relation

Extending US-6

Updating I-70 CO chronology