Damaged And Threatened National Natural Landmarks 1988 Classic Reprint PDF Download

Excerpt from Damaged and Threatened National Historic Landmarks: 1991 Report An additional 192, the so-called Priority 2 Landmarks, face uncertain futures. This represents an increase of 19 over the previous year. Together, Priority 1 and 2 Landmarks account for over 16% of all National Historic Landmarks the same percentage that were listed as endangered in 1989. The leading cause of endangerment to Priority 1 Landmarks is severe physical deterioration of or damage to building materials. This is directly related to the fact that 75% of Priority 1 Landmarks are buildings or districts composed primarily of buildings and structures. Incompatible alterations to the Landmark buildings or inappropriate new construction, either within the boundaries of the Landmark or on adjacent property, threaten 25% of the endangered properties. Damaging new uses, site erosion, vandalism, and potential demolition are also major threats. Of the approximately 192 archeological resources that are designated National Historic Landmarks, 33, or approximately are listed as Priority 1 Landmarks for 1991. These figures indicate that archeological sites and districts appear more susceptible to threats and damage than other nationally significant resources. The primary threat to archeological sites is erosion, followed by inappropriate new construction and damaging uses, such as plowing. 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.