Where does the data come from for the public land boundaries layer and the forest roads layer?

Forest Roads


Coverage includes public roads for all National Forests and National Grasslands with the exception of the Mark Twain NF in Missouri. In addition, Bureau of Land Management public roads are included for northern Arizona (the Arizona strip area), Idaho, Nevada, Utah, Wyoming, and western Montana.


The public roads are sourced from the US Forest Service and US Bureau of Land Management  (BLM) State and regional offices, and include variable source dates and content depending on the collection timeframe and methods for each jurisdiction. Public roads are labeled with the road number and/or road name where available, and designated as High-Clearance (4WD) or suitable for passenger cars. In some cases the National Forest or BLM offices mapped closed or abandoned roads, and these are depicted with special symbols to help plan navigation routes.



Public Lands


Public land boundaries are available in 46 States (not available in Alaska, Delaware, Rhode Island and South Carolina)


Western US State public land data was obtained from the US Bureau of Land Management State offices and range in date from 2010 to 2014. These states include boundaries for federal lands including National Forests and Grasslands, National Wildlife Refuges, National Parks, Bureau of Land Management, Bureau of Reclamation, Indian reservations, military and Department of Energy lands, and state boundaries including State Trust Lands, State parks, forests, and other State areas.


Western States include:








New Mexico

North Dakota (west)


South Dakota (west)





Eastern US States and Hawaii public land data was obtained from State sources, and generally includes State Parks and Forest, Wildlife Management Areas, federal lands including National Forest and National Wildlife Refuges, and other public lands including State Game Lands. The content of this overlay varies by the State source, and were acquired between 2010 and 2013. The public land overlay in these states will show federal and state lands and include the public land area name if available.

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