The trout are largely dependent for food on an abundance of small crustaceans in the lake. Research carried on in 1934-36 revealed that while 53.7 percent of the food came from crustaceans, 47.1 percent of this classification was confined to Daphnia pulex (water fleas). The figures were determined after the examination of 224 trout stomachs. The water fleas are most commonly found at a depth of 75 feet and are the most abundant of several types of food found in the lake depths. WINTER SPORTS The 12 months accessibility of Crater Lake National Park has made possible the enjoyment of winter sports in rare settings of wintry splendor. Steep and gradual slopes, according to speeds desired, are numerous in the park and are ideal for skiing and tobogganing, the source of many thrills for amateur winter recreationists. [Illustration: _Crawford photo_ FISHERMEN DISPLAY THEIR AFTERNOON CATCH] Professional snow meets in the park are not encouraged, but special attention is paid to amateur sports, making it possible for entire families to enjoy a day in the snow. Snow plows keep the south and west approach roads effectively cleared for comfortable motor travel between banks from 10 to 20 feet high in midwinter. Rangers are on constant duty during the winter season to render service to visitors. Lodging and food accommodations are within 20 miles of either side of the park. In addition to snow sports, visitors have the opportunity of viewing Crater Lake in a raiment of white, accentuating the mystic beauty of its unbelievably blue waters and its encircling, towering cliffs of multitudinous colors in close harmony with the pristine appeal of the mountain wonder. Inspiring to behold in the greenery of summer, Crater Lake robed in the white silences of winter is a magic scene of color, vastness, and mystery never to be forgotten. THE FORESTS Untouched by the hand of man, except for insect and tree disease control, and carefully guarded against the ravages of fire, the forests of Crater Lake form one of the park’s principal attractions. This is true not only from a scenic standpoint and a never-failing interest for tree lovers, but also because of the vast acres of magnificent stands.