The links below connect you to maps of the West, or individual
Western States, to show where grazing occurs on federal lands managed
by the Bureau of Land Management, National Forest and National
Grassland. Some of the maps also provide an additional layer with
precipitation data, to show where grazing occurs on "lands that
receive an average annual precipitation of 12 inches or less." The
Club's grazing policy calls for focusing work toward ending
commercial grazing in various key areas; areas lacking precipitation
are more easily mapped than other priority areas. PLEASE NOTE THE
Note on map file formats: The links below point to TIF and JPG image files.
Grazing allotment data was provided by the U.S Forest Service, U.S.
Bureau of Land Management. Neither the Forest Service nor Bureau of
Land Management made not claims to the accuracy of their data, and
made it clear that their grazing allotment mapping process was "a
work in progress" and as yet incomplete. Further, in some areas,
local agency GIS employees did not use the same naming and numbering
conventions used in agency's central allotment databases. Thus, areas
where grazing allotments have yet to be mapped by the agencies and
areas that could not be connected to each agency's master list of
allotments will show up as ungrazed on these maps. These maps were
from data provided from 2002-2005, and do not reflect management
decisions since that time.
Average annual precipitation data from 1961-1990 was provided by the
Natural Resources Conservation Service Water and Climate Center,
Natural Resources Conservation Service National Cartography and
Geospatial Center, PRISM Model, and the Oregon Climate Service at
Oregon State University. This data models average annual
precipitation contours in 2-inch intervals. Spatial resolution of
the data is approximately 2 km; local precipitation variation due to
topographic variability within that resolution may not be represented.
Ownership data is from Federal Lands of the United States, National
Atlas of the United States, Reston, VA. Only areas of 640 acres or
more are included. There may be private inholdings within the
boundaries of Federal lands in this map layer.
These maps were compiled with the help of Big Sky Conservation
Institute and Forest Guardians to provide general West-wide and
state-wide perspectives on the status of livestock grazing on federal
land managed by the National Forests (including the National
Grasslands) and Bureau of Land Management. To determine whether
specific sections of federally managed land near you currently allows
grazing, we encourage you to contact local agency offices to get the
most current status information and allotment maps.