98 AMERICAN FERN JOURNAL 
ciers in the Park, most of them small but nevertheless 
possessing all the features of the largest ones. Great 
banks of snow persist throughout the summer, often un- 
til late in the season even at low altitudes. There are 
also innumerable lakes, large and small, of beautiful 
shades of blue and green, some of which are found at high 
elevations, surrounded by banks of snow and masses of 
ice. Most spectacular is Iceberg Lake, whose blue sur- 
face is covered with huge blocks of floating ice fallen from 
the bordering glacier. The animal life also is of unusual 
interest and abundance. Mountain sheep and goats, 
bear, deer, ptarmigan, and many other mammals and 
birds can be seen by any visitor. 
Not the least attractive feature of Glacier Park is 
found in the plant life. Flowers are found everywhere 
in the greatest profusion. Particularly is this true above 
and near timber line, where the meadows are solid mass- 
es of bright color throughout the summer. The heavy 
coniferous forests, especially those of the west slope, are 
also of great interest. 
The Continental Divide, as is well known, is an im- 
portant factor in plant distribution, and this fact is 
strikingly exemplified locally in Glacier Park. The flora 
of the east slope is that generally characteristic of the 
mountains of Wyoming and Colorado. The trees are 
lodgepole and limber pine, alpine fir, Engelmann spruce, 
Douglas fir, aspen, and black cottonwood. On the west 
slope the flora shows a close relationship to that of the 
Pacific Coast. Here we find all the trees which grow on 
the east slope, and in addition the western white and 
yellow pines, western larch and hemlock, grand fir, giant 
cedar, and paper birch. All these are typical Pacific 
Slope species, and most of them reach the eastern limit 
of their range here. The herbaceous plants also illus- 
trate the differences between the floras of the two slopes, 
but not in so striking a fashion. The Pteridophyta, 
