CABINS IN THE SHADOW OF CASA GRANDE, Big Bend National Park. The contrasts of scenery in Big Bend National Park, from desert to towering mountain, are nearly as great as that between Casa Grande and these little cabins for visitors. The park gets its name from its location in the Big Bend of the Rio Grande as that river forms the international boundary between Mexico and the United States; and typifies the scenery and plant and animal life of Mexico more than it does that of the better known regions of the United States. (Courtesy, W. Ray Scott.)

TUOLUMNE MEADOWS LODGE, Yosemite National Park. A tent camp in the High Sierra, accessible both to motorists on the Tioga Road and to hikers and horseback riders, it is one of a chain of High Sierra camps located about 10 miles apart. From it radiates miles of mountain trails; and countless lakes and miles of streams offer some of the park's best fishing. At the lodge are comfortable tent accommodations, a central dining tent, and hot showers.

SNOWBALL DINING ROOM, Mammoth Cave National Park. This dining room, which gets its name from the gypsum formations resembling snowballs that cover the ceiling, is 267 feet underground and serves visitors who take the all-day cave trip. Note the box lunches in place on the tables, awaiting the hungry hordes. (Courtesy, W. Ray Scott.)

YOSEMITE LODGE EXPANSION, Yosemite National Park. Newer accommodations at Yosemite Lodge in the valley. Called Oak Cottage, this multiplex accommodation was opened to the public in 1952, filling a great need and meeting with popular acclaim.

MANY GLACIER HOTEL, Glacier National Park. From this hotel activities radiate in all directions. One of the older hotels, it is still a popular rallying ground. Now the park concessioner is embarked on an improvement program estimated to cost approximately three-quarters of a million dollars to improve other facilities in Glacier. (Photograph by Hileman.)