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|All Authors / Contributors:||Richard H Manville|
|Notes:||Fig. 1.-Approximate range of Citellus columbianus in western North America. The dark central area marks the location of Glacier National Park.
Plate 1. Characteristic poses of the Columbian ground squirrel. A, adult (left) and juvenile near Grinnell Glacier, 24 August 1955; B, adult near Iceberg Lake, 14 July 1955; C and D, juveniles, same occasion as A; E, adult near Many Glacier Ranger Station, 28 June 1955-less than one-third of the mound of excavated earth appears in the picture.
Plate II. Above: The Swiftcurrent Valley from the summit of Swiftcurrent Mountain; Altyn Peak at the left, Grinnell Point at the right, Sherburne Lake in the distance and the Many Glacier Ranger Station in the center of the picture. Columbian ground squirrels occur at the highest and lowest points shown. 14 August 1955. Below: View Eastward from Meadows at Logan Pass; Piegan Mountain at left, Mount Reynolds at right, Red Eagle and Little Chief Mountains in Distance. 29 July 1954.
Fig. 2.-Plan of Colony Site on Quadrat near Sherburne Lake (4,800 Feet) Partially Excavated in July and August, 1955. For Explanation of Letters, see text.
Fig. 3.-Plan of a winter den near Piegan Pass (7,000 feet) excavated on 27 July 1917. (After Bailey, 1918.)