North America Lakes and Rivers

This North American Environmental Atlas data are standardized geospatial data sets at 1:10,000,000 scale. A variety of basic data layers (e.g. roads, railroads, populated places, political boundaries, hydrography, bathymetry, sea ice and glaciers) have been integrated so that their relative positions are correct. This collection of data sets forms a base with which other North American thematic data may be integrated. Any data outside of Canada, Mexico, and the United States of America included in the North American Environmental Atlas data sets is strictly to complete the context of the data. The North American Environmental Atlas – Lakes and Rivers dataset displays the coastline, linear hydrographic features (major rivers, streams, and canals), and area hydrographic features (major lakes and reservoirs) of North America at a reference spatial scale of 1:1,000,000. This map offers a seamless integration of hydrographic features derived from cartographic products generated by Natural Resources Canada (NRCan), United States Geological Survey (USGS), National Institute of Statistics and Geography, (Instituto Nacional de Estadística y Geografía-Inegi), National Water Commission (Comisión Nacional del Agua-Conagua). This current version of the North America Lakes and Rivers is version 4.0, an improved version that includes the fixing of remaining topology errors in version 3.0 that superseded the version published by the Commission for Environmental Cooperation in 2011. Files Download本北美环境图集（North American Environmental Atlas）数据集为比例尺1:10,000,000的标准化地理空间数据集。已整合多类基础数据图层（例如道路、铁路、居民点、行政边界、水文要素、水深测量要素、海冰与冰川），确保各图层相对位置准确无误。该数据集集合可作为基础载体，用于整合其他北美专题数据。北美环境图集数据集中收录的加拿大、墨西哥、美国以外的区域数据，仅用于补充数据集的语境完整性。北美环境图集——河湖数据集以1:1,000,000的参考空间比例尺，展示了北美地区的海岸线、线状水文要素（大型河流、溪流与运河）以及面状水文要素（大型湖泊与水库）。该数据集实现了由加拿大自然资源部（Natural Resources Canada, NRCan）、美国地质调查局（United States Geological Survey, USGS）、墨西哥国家统计与地理研究所（Instituto Nacional de Estadística y Geografía, Inegi）以及墨西哥国家水资源委员会（Comisión Nacional del Agua, Conagua）生成的制图产品所提取的水文要素的无缝整合。本次发布的北美河湖数据集为4.0版本，该版本修复了3.0版本中遗留的拓扑错误，替代了2011年由环境合作委员会（Commission for Environmental Cooperation）发布的旧版数据集。文件下载