Download or read book Annual Project Technical Report for 1991 written by Roger Andrascik and published by Forgotten Books. This book was released on 2018-09-28 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Annual Project Technical Report for 1991: Fishery and Aquatic Management Program, Yellowstone National Park Yellowstone National Park is one of the few largely pristine ecosystems in the contiguous United States. Encompassing hectares miz) in the northwest corner of Wyoming and adjacent areas of Montana and Idaho, the park is bordered on the north and east by mountains that rise to m ft). Yellowstone is characterized by several broad, forested, volcanic plateaus that contain the world's largest volcanic caldera and thousands of geysers and other geothermal resources. In 1872, the United States Congress established Yellowstone, the Nation's first national park, for the benefit and enjoyment of the people and for the preservation, from injury and spoliation, of all timber, mineral deposits, natural curiosities and wonders and their retention in their natural condition. Today, the perpetuation of natural ecosystem processes is a primary goal of management in Yellowstone National Park. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.