Utah BLM Monuments and NCAs Historic

This feature class includes Cooperative Management and Protection Areas, Forest Reserves, National Conservation Areas, National Monuments, and Outstanding Natural Areas. Descriptions of each type of polygon found in this feature class can be found on Page 21 of the National Landscape Conservation System (NLCS) Implementation Guidelines (Version 1.1). The Bureau of Land Management's National Conservation Lands include 19 national monuments in nine western states. These national monuments encompass landscapes of tremendous beauty and diversity, ranging from rugged California coastline to vividly-hued desert canyons. The Antiquities Act of 1906 grants the President authority to designate national monuments in order to protect “objects of historic or scientific interest.” National conservation areas (NCAs) and similarly designated lands are designated by Congress to conserve, protect, enhance, and manage public lands for the benefit and enjoyment of present and future generations. The Bureau of Land Management's National Conservation Lands include 16 NCAs and five similarly designated lands in ten states. These lands feature exceptional scientific, cultural, ecological, historical, and recreational values. They differ tremendously in landscape and size, varying from the coastal beauty of California's 18-acre Piedras Blancas Light Station Outstanding Natural Area to the rugged desert vistas of Nevada's 1.2 million acre Black Rock Desert-High Rock Canyon Emigrant Trails NCA.本要素类包含合作管理与保护区（Cooperative Management and Protection Areas）、森林保护区（Forest Reserves）、国家保护区（National Conservation Areas）、国家纪念地（National Monuments）以及杰出自然区域（Outstanding Natural Areas）。本要素类中各类面要素的详细说明，可查阅《国家景观保护系统（National Landscape Conservation System, NLCS）实施指南（1.1版）》第21页。美国土地管理局（Bureau of Land Management）管辖的国家保护地体系包含分布于美国9个西部州的19处国家纪念地。这些国家纪念地涵盖了极具美感与多样性的景观，从崎岖的加利福尼亚海岸到色彩斑斓的沙漠峡谷一应俱全。1906年颁布的《古物法》赋予美国总统指定国家纪念地的权限，以保护“具有历史或科学价值的对象”。国家保护区（National Conservation Areas, NCAs）及其他同类指定土地由美国国会划定，旨在保护、维护、优化并管理公共土地，以供当代及后代民众受益与游览。美国土地管理局管辖的国家保护地体系包含分布于10个州的16处NCAs及5处同类指定土地。这些土地拥有极高的科学、文化、生态、历史及游憩价值。它们在景观与规模上差异巨大，从占地18英亩的加利福尼亚州皮德拉斯布兰卡斯灯塔杰出自然区域的海岸美景，到占地120万英亩的内华达州黑岩沙漠-高岩峡谷移民步道国家保护区的崎岖沙漠景观，跨度极大。