Although three species of deer are reported from the park area, the occasion is noteworthy that specimens of each form are seen within the course of one day's travel within the park. On July 27, while driving down the Wineglass motorway with Ranger-Naturalist Don Findlay, I observed and Idaho whitetail doe, Odocoileus virginianus ochrourus Bailey, cross the road and dash off into the timber with its "flag" highly raised.

Later in the morning three Rocky Mountain mule deer bucks Odocoileus hemionus hemionus (Rafinesque), were seen by the roadway near Bear Creek. Their white rump patches and black-tipped creamy tails showed distinctly against the dark background of the lodgepole timberland. This sector of the park is typical of the preferred arid habitat of this species.

On the way back to the Park Headquarters, three Columbia blacktail deer, Odocoileus hemionus columbianus (Richardson), were feeding in the meadow between Kerr Notch and Lost Creek Ranger Station.

Members of the guided trip afield had opportunity to observe a mule deer buck near the summit of Garfield Peak on August 4. This buck had one of its antlers broken and the other was still in the velvet. The tail, although typically cylindrical in shape and creamy in color, had a black strip extending down its entire length; the white rump patch was greatly reduced. These characteristics would seem to indicate that this individual was an intergrade with the Columbia blacktail deer.

While conducting a stream survey on upper Bybee Creek, I observed a large six point whitetail buck along the stream, one mile below Lightning Spring.

Blacktail were seen on various occasions along the streams and the highway in the western portions of the park through the summer. These, the most abundant of park deer, appear to be present in their usual numbers. There was a good fawn crop, so numerous fawns were to be seen during the season.