Adding roads and refining date range, Canyon area, Yellowstone N.P.
Adding roads and refining date range, Canyon area, Yellowstone N.P.
Adding Baronett Bridge and adjoining roads
Adding water and old roads, Yellowstone N.P.
Adding water and old roads, Yellowstone N.P.
Adding water and old roads, Yellowstone N.P.
Adding Cinnabar and Gardner, Montana
Adding historical roads north of Canyon
Extending Grand Loop Road to Tower from Mammoth
Extending Grand Loop Road and adding North Entrance Road
Extending Grand Loop Road, Norris to Mammoth
Extending Grand Loop Road, Madison to Norris
Extending Grand Loop Road fto Canyon
Extending Grand Loop Road from Lake toward Canyon.