Military Installations, Ranges and Training Areas (MIRTA)

The dataset depicts the authoritative locations of the most commonly known Department of Defense (DoD) sites, installations, ranges, and training areas in the United States and Territories. These sites encompass land which is federally owned or otherwise managed. This dataset was created from source data provided by the four Military Service Component headquarters and was compiled by the Defense Installation Spatial Data Infrastructure (DISDI) Program within the Office of the Deputy Under Secretary of Defense for Installations and Environment, Business Enterprise Integration Directorate. Sites were selected from the 2009 Base Structure Report (BSR), a summary of the DoD Real Property Inventory. This list does not necessarily represent a comprehensive collection of all Department of Defense facilities, and only those in the fifty United States and US Territories were considered for inclusion. For inventory purposes, installations are comprised of sites, where a site is defined as a specific geographic location of federally owned or managed land and is assigned to military installation. DoD installations are commonly referred to as a base, camp, post, station, yard, center, homeport facility for any ship, or other activity under the jurisdiction, custody, control of the DoD.本数据集收录了美国及美属领地内最广为人知的美国国防部（Department of Defense, DoD）场地、设施、靶场与训练区域的权威地理坐标。这些场地涵盖联邦所有或以其他方式管理的土地。本数据集的源数据来自四大军种司令部，由位于国防部设施与环境事务副部长办公室业务企业集成局内的国防设施空间数据基础设施（Defense Installation Spatial Data Infrastructure, DISDI）项目组编制。数据场地选自2009年《基地结构报告（Base Structure Report, BSR）》——该报告是国防部不动产清单的汇总文件。本列表未必涵盖所有美国国防部设施，仅纳入美国本土50州及美属领地内的场地。就清单编制而言，军事设施由若干场地组成，其中场地指联邦所有或管理的特定地理区位，并隶属于对应军事设施。美国国防部设施通常被称为基地、营地、哨所、驻地、场站、中心、舰船母港设施，或其他受国防部管辖、监护与控制的相关活动场所。