Military Bases

The Military Bases dataset was last updated on November 11, 2025 and are defined by Fiscal Year 2024 data, from the Office of the Assistant Secretary of Defense for Energy, Installations, and Environment and is part of the U.S. Department of Transportation (USDOT)/Bureau of Transportation Statistics (BTS) National Transportation Atlas Database (NTAD). The dataset depicts the authoritative locations of the most commonly known Department of Defense (DoD) sites, installations, ranges, and training areas world-wide. 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 Assistant Secretary of Defense for Energy, Installations, and Environment. Only sites reported in the BSR or released in a map supplementing the Foreign Investment Risk Review Modernization Act of 2018 (FIRRMA) Real Estate Regulation (31 CFR Part 802) were considered for inclusion. This list does not necessarily represent a comprehensive collection of all Department of Defense facilities. 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. While every attempt has been made to provide the best available data quality, this data set is intended for use at mapping scales between 1:50,000 and 1:3,000,000. For this reason, boundaries in this data set may not perfectly align with DoD site boundaries depicted in other federal data sources. Maps produced at a scale of 1:50,000 or smaller which otherwise comply with National Map Accuracy Standards, will remain compliant when this data is incorporated. Boundary data is most suitable for larger scale maps; point locations are better suited for mapping scales between 1:250,000 and 1:3,000,000. If a site is part of a Joint Base (effective/designated on 1 October, 2010) as established under the 2005 Base Realignment and Closure process, it is attributed with the name of the Joint Base. All sites comprising a Joint Base are also attributed to the responsible DoD Component, which is not necessarily the pre-2005 Component responsible for the site. A data dictionary, or other source of attribute information, is accessible at https://doi.org/10.21949/1529039本军事基地数据集最近一次更新于2025年11月11日，其数据基于2024财年信息，由美国国防部负责能源、设施与环境的助理部长办公室提供，隶属于美国运输部（U.S. Department of Transportation, USDOT）/美国运输统计局（Bureau of Transportation Statistics, BTS）国家交通地图集数据库（National Transportation Atlas Database, NTAD）。本数据集收录了全球范围内最为人熟知的美国国防部（Department of Defense, DoD）场地、设施、靶场及训练区域的权威位置信息。上述场地涵盖联邦所有或委托管理的土地。本数据集的源数据来自四大军种司令部，由美国国防部负责能源、设施与环境的助理部长办公室下属的国防设施空间数据基础设施（Defense Installation Spatial Data Infrastructure, DISDI）计划编制完成。仅纳入BSR中提及的场地，或在补充《2018年外国投资风险审查现代化法案（Foreign Investment Risk Review Modernization Act of 2018, FIRRMA）房地产条例（31 CFR第802部分）》的地图中发布的场地。本数据集未必涵盖美国国防部所有设施。从编目角度而言，设施由场地组成：场地指联邦所有或管理的特定地理区位，并隶属于某一军事设施。美国国防部的设施通常被称为基地、营地、哨所、站点、场地、中心、船舶母港设施，或其他受美国国防部管辖、监护与控制的相关区域。尽管已尽最大努力保障数据质量，但本数据集仅适用于1:50000至1:3000000的制图比例尺。因此，本数据集中的边界可能与其他联邦数据源中呈现的美国国防部场地边界不完全一致。若地图比例尺为1:50000或更小，且原本符合《国家地图精度标准》，则纳入本数据集后仍可保持合规性。边界数据最适用于大比例尺地图；点位信息则更适配1:250000至1:3000000的制图比例尺。若某场地属于根据2005年基地调整与关闭流程设立的联合基地（于2010年10月1日生效/指定），则其属性将标注为该联合基地的名称。所有隶属于联合基地的场地，其属性亦将标注对应的美国国防部负责部门，该部门未必是2005年前负责该场地的原部门。可通过https://doi.org/10.21949/1529039获取数据字典或其他属性信息来源。