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2014. California. Department of Water Resources. This line shapefile represents groundwater elevation in California for spring 2014. This layer is a smoothed approximation of the groundwater level... California. Department of Water Resources.
2016. California. Department of Water Resources. This line shapefile represents groundwater elevation in California for spring 2016. This layer is a smoothed approximation of the groundwater level... California. Department of Water Resources.
2012. Miller, David, John A. Volpe National Transportation Systems Center (U.S.), and United States. Bureau of Transportation Statistics. This polyline shapefile depicts FMCSA Hazardous Material Routes that were developed using the 2004 First Edition Topologically Integrated Geographi... United States. Bureau of Transportation Statistics.
2004. Hopkins Marine Station and Sotka, Carolyn. This line shapefile represents Hewatt's Transect, located in the Hopkins Marine Life Refuge, Pacific Grove, California. In 1931, a graduate student... Stanford Digital Repository.
2015. Vu, Khanh and California. Department of Transportation. This line shapefile represents the existing, under construction, programmed, and proposed High-Occupancy Vehicle (HOV) lanes on the California stat... California. Department of Transportation.
6. Highways
2005. DTIS. Highways in San Francisco. Based on comparison to TIGER designations for San Francisco streets. A view of the STCLINES layer. (Does not include... San Francisco (Calif.). Department Of Telecommunications and Information Services.
2013. Humboldt County Community Development Services. This GIS dataset is the result of ongoing efforts to produce an accurate Roadway Centerline GIS layer for Humboldt County. Multiple source datasets...
2011. United States. Federal Highway Administration. Office of Highway Policy Information and United States. Bureau of Transportation Statistics. The Federal Highway Administration (FHWA) has the responsibility to assure that adequate highway transportation information is available to support... United States. Bureau of Transportation Statistics.
2011. United States. Bureau of Transportation Statistics and United States. Federal Highway Administration. This polyline shapefile depicts the National Highway Planning Network, a comprehensive network database of the United States' major highway system.... United States. Bureau of Transportation Statistics.
2019. Placer County Geographic Information Systems. This line shapefile represents highways in Placer County, Calfornia. This layer is part of a collection of public geospatial datasets produced by t... Placer County Geographic Information Systems.