The development of the park areas above the rim has inevitably brought
with it the establishment of branch-museum and ranger-naturalist service
at several focal points of interest.
The Glacier Point Lookout is located on the most famed scenic point on
the rim. Powerful binoculars enable visitors to bring the Sierra’s great
peaks to their very feet. A flower show is maintained, and a
ranger-naturalist on duty conducts a service of field trips and lectures
which correlate with those offered from the Yosemite Museum.
At Mariposa Grove the old log cabin originally built by Galen Clark and
replaced by the State in 1885 has been reconstructed. This is now
equipped as a museum telling the complete story of the Big Trees. A
ranger-naturalist is stationed here to lecture, make guide trips to
famous trees, sell publications, and give accurate information.
At Tuolumne Meadows a ranger-naturalist is stationed during July and
August to conduct field trips, organize more strenuous mountain-climbing
expeditions, keep up an exhibit of local interest, and lecture at
evening camp fires.
Guide maps, and topographical maps may be obtained from the
ranger-naturalists, who will be glad to assist visitors desiring to know
more about the park.