The scientific study of rangelands in the western United States, started wi
th the first collection of natural history specimens in the 18th century. G
radually over the 19th century, a basic catalog of the plants, animals, and
geography of the far west was assembled. After the U.S. Department of Agri
culture (USDA) was organized, scientists were sent to the western ranges on
fact-finding missions designed to assess the existing range livestock indu
stry and its potential. At the turn of the 19th to the 20th century, a few
visionary scientist began to conduct actual experiments in rangeland enviro
nments. The Forest Service, USDA, was established in 1905, and what had bee
n Forest Reserves from the U.S. Department of Interior (USDI) were transfer
red to the new agency. It was responsible for sustainable timber product an
d watershed management on millions of acres of wild lands. The Forest Servi
ce soon discovered that livestock grazed on four-fifths of the National For
est land and it was estimated that 85% of these rangelands were over-grazed
and subject to accelerated erosion. The Forest Service started preliminary
research on rangelands in 1907 and formally started an Office of Grazing S
tudies in 1910. Beginning with the Great Basin Experiment Station in 1912,
a series of stations were developed by the Forest Service. As agricultural
experiment stations developed at Land Grant colleges in the western states,
state sponsored research on rangelands increased in importance.