GENERAL NOTES 
93 
state. The point where the animals were seen was at the head of Ten-mile 
Creek, a tributary of the Big Hole River, just south of the continental divide, 
which in this part of the state runs east and west. This locality is probably an 
eastward extension of the Idaho area of the range of this species, for almost 
continuous high mountains extend from this point west to the Bitterroot 
Mountains. 
Nearly two years later, in the summer of 1911, I again saw this animal, and 
in this and the next summer became fairly familiar with it. The locality this 
time was in the mountains of Teton County, Montana, just south of the Glacier 
National Park. Here in the headwaters of Birch Creek, and the Teton and 
Sun Rivers the marmot was found in small numbers, though by no means as 
commonly as in the Glacier Park. The southernmost point at which I observed 
it here was at the head of Indian Creek, a tributary of the West Fork of the Sun 
River, in northern Lewis and Clark County. Some of the forest rangers in this 
vicinity reported them on the head of the Dearborn River, which is still some- 
what farther south. This area is obviously an extension southward of the more 
northern area of the range of this species, though the two areas are separated 
by a gap of a few miles just south of the Glacier Park, where there are no high 
mountains. 
It is not probable that the southern and northern areas of the range of this 
species are connected along the continental divide, for the mountains between 
the head of the Dearborn River, and those of Deer Lodge County are mostly low 
in elevation, with only a few small areas that extend above the Canadian zone. 
— At etas A. Saunders. 
RODENT MOUNTAINEERS 
In the course of investigations by the Biological Survey party on Mount 
Rainier during the summer season of 1919 several rumors were heard of mammals « 
observed on the summit of the mountain. These were uniformly questioned by 
us until finally a white-footed mouse {Peromyscus maniculatus areas) was 
actually secured. It was forwarded to the Honorable Roger W. Toll, superin- 
tendent of Mount Rainier National Park, who skinned and saved the specimen. 
An affidavit accompanying the skin certifies to the fact that the mouse was found 
and killed August 8, 1919, at Register Rock, one of the high points on the moun- 
tain, 14,100 to 14,200 feet altitude. The affidavit is signed by two guides and 
four climbers, all members of the summit party. 
At a later date Mr. and Mrs. William L. Finley of Portland, Oregon, made the 
ascent of Mount Rainier and saw a little chipmunk {Eutamias amcenus subsp.) 
on the summit. 
On August 6 a climbing party of the Mountaineers and the writer observed a 
Douglas squirrel {Sciurus douglasii) playing about in the rocks apparently very 
much at home no less than 2500 feet above timberline at Camp Curtis on the 
north side of the mountain. Later in the day one squirrel was seen and another 
heard at the summit of Steamboat Prow, 9700 feet high; and on the following 
day, in company with a party of the Mountaineers, en route to the summit of 
Mount Rainier via Emmons Glacier, the writer saw a Douglas squirrel at an 
altitude of approximately 10,500 feet. This squirrel was on the snowy surface 
