The National Map

As one of the cornerstones of the U.S. Geological Survey's (USGS) National Geospatial Program, The National Map is a collaborative effort among the USGS and other Federal, State, and local partners to improve and deliver topographic information for the Nation. It has many uses ranging from recreation to scientific analysis to emergency response. The National Map is easily accessible for display on the Web, as products and services, and as downloadable data. The geographic information available from The National Map includes orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover. Other types of geographic information can be added within the viewer or brought in with The National Map data into a Geographic Information System to create specific types of maps or map views.

作为美国地质调查局（USGS）国家地理项目的基础性支柱之一，《国家地图》是由美国地质调查局及其他联邦、州和地方合作伙伴共同发起的协作项目，旨在提升并提供全国性的地形信息。该地图广泛应用于休闲娱乐、科学分析和应急响应等多个领域。通过网络平台，用户可便捷地浏览《国家地图》，获取地图产品和服务，亦可通过下载获取数据。从《国家地图》中可获取的地理信息包括正射影像（航空照片）、高程、地名、水文、边界、交通、建筑和地表覆盖等。此外，在地图查看器中或通过将《国家地图》数据导入地理信息系统，还可以添加其他类型的地理信息，以创建特定类型的地图或地图视图。