722 ROLLIN D. SALISBURY 



slightly to the west of north. After continuing northward 

 for a distance, this moraine probably loops eastward around 

 the mountains in the Colville Indian Reservation, connecting with 

 the moraine of the ice lobe which occupied the Columbia valley, 

 north of its junction with the Spokane. The Okanogan or 

 Coulee City ice lobe was about thirty-five miles wide in the lati- 

 tude of Chelan Falls, and nearly fifty miles wide at the upper 

 end of the Grand Coulee. 



The moraine of the ice lobe which came down the valley of 

 the Columbia, just west of the meridian of ii8°, was traced 

 southward from a point in the Colville Indian Reservation about 

 three miles west of Kettle Falls on the Columbia, to the point 

 where it crosses the Columbia seven miles southwest of Fruit- 

 land. Between these points, the moraine lies three to six miles 

 west of the Columbia. Just east of the Columbia the moraine is 

 lost in the terraces at the junction of the Columbia and Spokane 

 valleys. From this point the moraine was traced northeastward, 

 passing about three miles east of Fruitland, and thence along the 

 west face of the mountains, to the Huckleberry Mountain in the 

 S. E. corner of Tp. 32, R. 38, E. (about latitude 48° 15'). At 

 this point it loops around and over the northeastern end of 

 this mountain, and then turns southward in the Colville River 

 Valley. The glacier of the Columbia Valley had a width of 

 about six and one-half miles in latitude 48", and a width of 

 about fifteen miles, fifteen miles farther north. 



As already mentioned, the moraine of the Columbia glacier 

 loops over and crosses Huckleberry Mountain and becomes con- 

 tinuous, in the Colville Valley, with a lobe of ice which descended 

 that valley to Springdale. The moraine of the east side of this 

 lobe was traced northward along the mountains east of the Col- 

 ville Valley, to Old Dominion Mountain, seven miles east of 

 Colville. This seems to be the latitude where the moraine 

 swings across the mountains to the east, though the crossing was 

 not demonstrated. The Colville glacier had a width of about 

 thirteen miles at Valley, about eight miles north of the southern 

 end of the lobe. The width of the combined Colville and 



