55 
IOWA ACADEMY OF SCIENCE Voi,. XXVII, 1920 
located on one of the branches of St. Louis creek, at the junction 
with Spruce creek. The other route is by auto going along one 
of the branches of Fraser river, from the west and over Berthoud 
pass with a magnificent view of James peak and, to the south- 
west, Parry Mountain. Torrey and Gray peaks are further to 
the south. A fairly good road passes over the Berthoud pass, 
then through Empire, Idaho Springs, and the fine system of high- 
ways in the Denver mountain parks down to Golden, passing 
Lookout mountain where Bill Cody is buried. 
In addition to the localities mentioned, a trip was made to 
Specimen Mountain in the Rocky Mountain national park, going 
by way of Fraser river. Camp Uray on Grand river and the 
Grand Lake country, spending a little time on Beaver creek and 
then over to Milner pass. A modern up-to-date highway is being 
constructed over the divide between the waters of the Pacific and 
the Atlantic so that this interesting region will be accessible to 
tourists. A small lake and some open park country occur just 
below the pass on the Atlantic slope. The Specimen Mountain 
country is interesting because of the mountain sheep, which at the 
time of our visit were grazing at timber line and above. It is also 
interesting because of volcanic rock. Specimen Mountain being an 
extinct crater. 
There are comparatively few large parklike openings on the 
smaller tributaries. On the larger streams like Fraser river at 
Fraser the parks are larger and during the early summer are 
visited by an abundance of wild game. In these parks we ob- 
served an abundance of Pedicularis groenlandica, Valeriana cera- 
tophylla, Lappiila dorihunda, Swertia scopulina, Pseudocymopteris 
montana and Astragalus elegans. In the swampy canyons and 
woods we observed the following plants: Mertensia ciliata, Prim- 
ula Parryi, Osmorrhiza ohtusa, Angelica pinnata, Pyrola secunda, 
Lycopodium annotinum, Picea Bngelmanni, V eratrum speciosum, 
Streptopus amplexifolius, Cypripedium acaule, Limnorchis viridi- 
flora, Coeloglossum hracteatum, Lonicera involucrata and Senecio 
triangularis. 
The beaver bogs of the region are interesting. They are num- 
erous at 9,000 to 9,500 feet altitude, not only on the smaller tribu- 
taries of St. Louis creek like Spruce creek, but on Grand river 
in the Specimen Mountain country and on the east slope. Doctor 
Parry in his paper. Physiographic Sketches, mentions how the 
currents of the mountain stream are interrupted by beaver dams 
and the subsequent growth of willow and alder bushes. On Spruce 
