Data

Use the interface below to filter and download available NLCD products. Click (here) for NLCD Science Research Products which offer more comprehensive delineation of shrub and grass classes and information about change disturbance. For access to dynamic MRLC viewer applications and tools, click (here).

 

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 2021 Percent Developed Imperviousness (CONUS)

CONUS | 2021

NLCD 2021 Developed Imperviousness Descriptor (CONUS)

CONUS | 2021

Exotic Annual Grass

The Exotic Annual Grass (EAG) abundance dataset provides early season percent cover estimate of the exotic grass species in 30m spatial resolution for a mapped year in rangeland ecosystems of western United States. We plan to release these EAG estimates multiple times each year in early growing season. EAG is a continuous field consisting of abundance of non-native grass species whose life history is complete in one growing season. Cheatgrass (Bromus tectorum) is a dominant species, but this dataset also includes Bromus arvensis L., Bromus briziformis Fisch. & C.A. Mey. Bromus catharticus Vahl, Bromus commutatus Schrad, Bromus diandrus Roth, Bromus hordeaceus L., Bromus hordeaceus spp. Hordeaceus, Bromus japonicus Thunb, Bromus madritensis L., Bromus madritensis L. ssp. rubens (L.) Duvin, Bromus racemosus L., Bromus rubens L., Bromus secalinus L., Bromus texensis (Shear) Hitchc, and medusahead (Taeniatherum caput-medusae (L.) Nevski). A main objective of releasing these maps is to provide a tool for better monitoring EAG dynamics and informing conservation and management efforts at local to regional scales.  (Read More)

Exotic Annual Grass Percent Cover - July 2021

Western U.S. | 2021

Exotic Annual Grass Confidence Level - July 2021

Western U.S. | 2021

Exotic Annual Grass Percent Cover - May 2021

Western U.S. | 2021

Exotic Annual Grass Confidence Level - May 2021

Western U.S. | 2021

RCMAP - Time-Series - Cover

V5 RCMAP Factsheet.pdf2.14 MB

The RCMAP product suite includes 10 components: annual herbaceous, bare ground, herbaceous, litter, non-sagebrush shrub, perennial herbaceous, sagebrush, shrub, tree, and shrub height. Data characterize the percentage of each 30-meter pixel in the Western United States covered by each component for each year from 1985-2023 - providing change information for 39 years. Because of file size limitations, individual years of component cover data are packaged in three time intervals including 1985-1996, 1997-2008, and 2009-2023. Perennial herb and non-sagebrush shrub are derivatives of herbaceous and annual herbaceous cover, and shrub and sagebrush cover, respectively. (Read More)

RCMAP Shrub Cover

Western U.S. | 1997-2008

RCMAP Sagebrush Cover

Western U.S. | 1997-2008

RCMAP Litter Cover

Western U.S. | 1997-2008

RCMAP Herbaceous Cover

Western U.S. | 1997-2008

RCMAP Bare Ground Cover

Western U.S. | 1997-2008

RCMAP Shrub Height

Western U.S. | 1997-2008

RCMAP Tree Cover

Western U.S. | 1997-2008

RCMAP Perennial Herbaceous Cover

Western U.S. | 1997-2008

RCMAP Annual Herbaceous Cover

Western U.S. | 1997-2008

RCMAP Non-sagebrush Shrub Cover

Western U.S. | 1997-2008