"At the place known as Head-Smashed-In in southwestern Alberta, Aboriginal people practiced a form of group hunting for nearly 6,000 years before European contact. The large communal bison traps of the Plains were the single greatest food-getting method ever developed in human history. Hunters, working with their knowledge of the land and of buffalo behaviour, drove their quarry over a cliff and into wooden corrals. The rest of the group butchered the kill in the camp below

Millions of years ago, the North American continent was dragged over the world's largest continental hotspot, a huge column of hot and molten rock rising from the Earth's interior that traced a 50-mile wide, 500-mile-long path northeastward across Idaho. Generating cataclysmic volcanic eruptions and large earthquakes, the hotspot helped lift the Yellowstone Plateau to more than 7,000 feet and pushed the northern Rockies to new heights, forming unusually large glaciers to carve the landscape. It also created the jewel of the U.S. national park system: Yellowstone. Meanwhile, forces stretching apart the western U.S. created the mountainous glory of Grand Teton National Park. These two parks, with their majestic mountains, dazzling geysers, and picturesque hot springs, are windows into the Earth's interior, revealing the violent power of the dynamic processes within. Smith and Siegel offer expert guidance through this awe-inspiring terrain, bringing to life the grandeur of these geologic phenomena as they reveal the forces that have shaped--and continue to shape--the greater Yellowstone-Teton region. Over seventy illustrations--including fifty-two in full color--illuminate the breathtaking beauty of the landscape, while two final chapters provide driving tours of the parks to help visitors enjoy and understand the regions wonders. Fascinating and informative, this book affords us a striking new perspective on Earth's creative forces.

This publication presents as a reference document the first issuance of the national guidelines for health planning as they were published by the department of health, education, and welfare on march 28, 1978. This is accompanied by a reprinting from the federal register of the preambles to the final rule and to the two notices of proposed rulemaking which preceded the final rule. A purpose of these guidelines is to assist health systems agencies in developing health systems plans and to help clarify and coordinate national health policy. This first issue consists of resource standards with respect to nine specific categories of health services and facilities. General hospital beds, obstetrical inpatient services, neonatal special care units, pediatric inpatient services, open heart surgery, cardia catheterization, radiation therapy, computed tomographic scanners, and end-stage renal disease.