Land Cover
The National Land Cover Database (NLCD) provides nationwide data on land cover and land cover change at a 30m resolution with a 16-class legend based on a modified Anderson Level II classification system. NLCD 2021 represents the latest evolution of NLCD land cover products focused on providing innovative land cover and land cover change data for the Nation. NLCD 2021 offers 9 integrated epochs of land cover for years 2001, 2004, 2006, 2008, 2011, 2013, 2016, 2019, and 2021. chs (2001 – 2021) and are directly comparable across the full time series and suitable for multi-temporal analysis. The NLCD 2021 release is update based, so the Land Cover and Impervious Surface products released in 2019 are unchanged and can be used directly with NLCD 2021. Science products and the change index will need to be reacquired to contain the additional 2021 change. Specific map products include:Developed classes in these years are directly derived from percent developed impervious surface and include a descriptor label that identifies the type of each impervious surface pixel. The NLCD Land Cover change index combines information from all years of land cover change and provides a simple and comprehensive way to visualize change from all 9 dates of land cover in a single layer. The change index was designed to assist NLCD users to understand complex land cover change with a single product. NLCD 2021 does not yet contain updated products for Alaska, Hawaii and Puerto Rico. (Read More)
NLCD Land Cover Change Index (CONUS)
CONUS
| 2021, 2019, 2016, 2013, 2011, 2008, 2006, 2004, 2001
NLCD Land Cover (CONUS) All Years
CONUS
| 2021, 2019, 2016, 2013, 2011, 2008, 2006, 2004, 2001
NOAA 2011 High Resolution Land Cover (HAWAII)
Islands & Territories
| 2011
NOAA 2005 to 2011 High Resolution Land Cover Change (HAWAII)
Islands & Territories
| 2005, 2011
NOAA 2001 to 2005 Land Cover Change (HAWAII)
Islands & Territories
| 2001, 2005
NLCD 2019 Land Cover (CONUS)
CONUS
| 2019
NLCD 2016 Land Cover (ALASKA)
Alaska
| 2016
NLCD 2016 Land Cover (CONUS)
CONUS
| 2016
NLCD 2011 to 2016 Land Cover Change (ALASKA)
Alaska
| 2011, 2016
NLCD 2011 Land Cover (ALASKA)
Alaska
| 2011
NLCD 2011 from-to 2016 Land Cover Change Pixels (ALASKA)
Alaska
| 2011, 2016
NLCD 2011 Land Cover (CONUS)
CONUS
| 2011
NLCD 2008 Land Cover (CONUS)
CONUS
| 2008
NLCD 2001 to 2016 Land Cover Change (ALASKA)
Alaska
| 2001, 2016
NLCD 2001 Land Cover (ALASKA)
Alaska
| 2001
NLCD 2001 Land Cover (CONUS)
CONUS
| 2001
NLCD 2001 from-to 2011 Land Cover Change Pixels (ALASKA)
Alaska
| 2001, 2011
NLCD 2001 Land Cover (HAWAII)
Islands & Territories
| 2001
NLCD 2001 from-to 2016 Land Cover Change Pixels (ALASKA)
Alaska
| 2001, 2016
NLCD 2001 to 2011 Land Cover Change (ALASKA)
Alaska
| 2001, 2011
NLCD 2001 Land Cover (PUERTO RICO)
Islands & Territories
| 2001
Urban Imperviousness
NLCD imperviousness products represent urban impervious surfaces as a percentage of developed surface over every 30-meter pixel in the United States. The NLCD 2021 release is update based, so the Impervious Surface products released in 2019 are unchanged and can be used directly with NLCD 2021.This update provides integrated analysis throughout all dates and includes a matching impervious surface descriptor layer. This descriptor layer identifies types of roads, wind tower sites, building locations, and energy production sites to allow a deeper analysis of developed features. No new imperviousness products for Alaska, Hawaii and Puerto Rico are available for NLCD 2021. (Read More)
NLCD Imperviousness (CONUS) All Years
CONUS
| 2021, 2019, 2016, 2013, 2011, 2008, 2006, 2004, 2001
NLCD 2019 Percent Developed Imperviousness (CONUS)
CONUS
| 2019
NLCD 2019 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2019
NLCD 2016 Percent Developed Imperviousness (CONUS)
CONUS
| 2016
NLCD 2016 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2016
NLCD 2011 Percent Developed Imperviousness (CONUS)
CONUS
| 2011
NLCD 2011 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2011
NLCD 2011 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2011
NLCD 2001 Percent Developed Imperviousness (CONUS)
CONUS
| 2001
NLCD 2001 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2001
NLCD 2001 to 2011 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2001, 2011
NLCD 2001 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2001
NLCD 2001 Percent Developed Impervious (HAWAII)
Islands & Territories
| 2001
NLCD 2016 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2016
NLCD 2016 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2016
NLCD 2016 Developed Urban Descriptor (ALASKA)
Alaska
| 2016
NLCD 2011 to 2016 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2011, 2016
NLCD 2011 Developed Urban Descriptor (ALASKA)
Alaska
| 2011
NLCD 2011 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2011
NLCD 2008 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2008
NLCD 2008 Percent Developed Imperviousness (CONUS)
CONUS
| 2008
NLCD 2001 Developed Urban Descriptor (ALASKA)
Alaska
| 2001
NLCD 2001 to 2016 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2001, 2016
NLCD 2001 Percent Developed Imperviousness (PUERTO RICO)
Islands & Territories
| 2001
NLCD 2001 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2001
Tree Canopy
NLCD tree canopy cover geospatial datasets with spatial resolutions of 30 m are produced by the USDA Forest Service. Tree canopy cover is derived from multi-spectral satellite imagery and other available ground and ancillary information. Tree canopy products for the period 2011-2021 are available for the conterminous United States, and by summer 2023, they will also cover coastal south east Alaska, Hawaii, Puerto Rico, and U.S. Virgin Islands. (Read More)
NLCD 2019 USFS Tree Canopy Cover (HAWAII)
Islands & Territories
| 2019
NLCD 2019 USFS Tree Canopy Cover (PUERTO RICO & U.S. VIRGIN ISLANDS)
Islands & Territories
| 2019
NLCD 2019 USFS Tree Canopy Cover (ALASKA)
Alaska
| 2019
NLCD 2019 USFS Tree Canopy Cover (CONUS)
CONUS
| 2019
NLCD 2016 USFS Tree Canopy Cover (CONUS)
CONUS
| 2016
NLCD 2016 USFS Tree Canopy Cover (PUERTO RICO & U.S. VIRGIN ISLANDS)
Islands & Territories
| 2016
NLCD 2016 USFS Tree Canopy Cover (HAWAII)
Islands & Territories
| 2016
NLCD 2016 USFS Tree Canopy Cover (ALASKA)
Alaska
| 2016
NLCD 2014 USFS Tree Canopy Cover (CONUS)
CONUS
| 2014
NLCD 2014 USFS Tree Canopy Cover (HAWAII)
Islands & Territories
| 2014
NLCD 2014 USFS Tree Canopy Cover (PUERTO RICO & U.S. VIRGIN ISLANDS)
Islands & Territories
| 2014
NLCD 2014 USFS Tree Canopy Cover (ALASKA)
Alaska
| 2014
NLCD 2011 USFS Tree Canopy Cover (ALASKA)
Alaska
| 2011
NLCD 2011 USFS Tree Canopy Cover (CONUS)
CONUS
| 2011
NLCD 2011 USFS Tree Canopy Cover (HAWAII)
Islands & Territories
| 2011
NLCD 2011 USFS Tree Canopy Cover (PUERTO RICO & U.S. VIRGIN ISLANDS)
Islands & Territories
| 2011
NLCD ALL USFS Tree Canopy Cover (CONUS)
CONUS
| 2011-2021
RCMAP – Basemap (2016)
RCMAP base component products characterize the percentage of each 30-meter pixel in the Western United States covered by shrub, herbaceous, bare ground, litter, sagebrush, big sagebrush and annual herbaceous, along with estimating shrub height and sagebrush height. These products have been produced by USGS in collaboration with the Bureau of Land Management. Component products are designed to be used individually or combined to support a broad variety of applications.
Please note these new Revised (071520) rangeland products will differ from the first generation of circa 2016 fractional cover maps, a more aggressive masking of tree canopy cover was applied to each rangeland component. Specifically, we have lowered the tree canopy cover threshold for exclusion from 40 to 25%. For pixels with 1-25% tree canopy cover we ensured that our primary components (shrub, herbaceous, litter, and bare ground) cover summed to 100% when added with the tree canopy. And, for the secondary components (sagebrush, big sagebrush, sagebrush height and shrub height) we reconciled to the primary component (shrub), excluding any pinyon-juniper woodlands. (Read More)
NLCD 2016 All Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Annual Herbaceous Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Shrub Height Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Big Sagebrush Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Shrub Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Bare Ground Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Sagebrush Height Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Sagebrush Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Litter Rangeland Cover
Western U.S.
| 2016
NLCD 2016 Herbaceous Rangeland Cover
Western U.S.
| 2016