These medium-scale maps are designed to cover an area of approximately 1,500 to 2,200 square miles and are ideal for any application where information across a large area is needed.100K Topoġ00K Topos are 1:100,000-scale maps inspired by the 30- by 60-minute map series published by the USGS through the end of the 20th century. Users may choose the level of contour detail best suited for their unique map needs.Ĭustom Extent 100K Topo map created using the topoBuilder application in October 2023. An additional customization is available for 7.5-Minute Topos: Contour smoothing.Virgin Islands, American Samoa, Guam, and the Commonwealth of the Northern Mariana Islands 1:24,000 for the contiguous United States and Hawaii.In order to balance areal extent shown and printed product page size at varying locations on the Earth's surface, three scales are found within this map type:. This large-scale map type provides a high level of detail over approximately 50 and 70 square miles per map and can be used for recreation and navigation (orienteering and geocaching), city planning, search and rescue, science studies such as geologic and geographic field work, and much more.7.5-Minute Topoħ.5-Minute Topos closely resemble historical 7.5-minute USGS map products as well as US Topo maps. There are currently two OnDemand Topo Map Types available: The 7.5-Minute Topo and the 100K Topo.Ĭustom Extent 7.5-Minute Topo map created using the topoBuilder application in January 2023. OnDemand Topo contours and shaded relief are generated on the fly from the latest USGS elevation data, including high-quality lidar and IfSAR data acquired through the 3D Elevation Program. Users then simply enter a valid email address and a direct link to download their unique map will be delivered free of charge. Maps are often delivered within 24 hours but may take up to 5 business days.The Edit Layers capability lets users select which layers of The National Map they would like to be included in their custom map product.Users also have their choice of file format (georeferenced PDF or TIFF).OnDemand Topo maps do not need to align with the traditional USGS map grids so one map can cover an area that may have previously required up to four maps. Exclusive to topoBuilder is the ability to center maps anywhere * users choose.One Custom Extent OnDemand Topo (right) may cover an area that previously required up to four topo maps (left).
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