From 1976 to 2000 grazing units fell from 10.1 million to 9.8 million
What increased? Conservation Areas and Natl Monuments, Coal, historical and archeological sites, areas of critical concern, recreation areas, endangered and threatened species, wilderness and wilderness study areas.
This is from 1976 to 2000 so these trends likely continued after 2000.
“From 1976 to 2000 grazing units fell from 10.1 million to 9.8 million “
The BLM says you are wrong:
“Over time there has been a gradual decrease in the amount of grazing that takes place on BLM-managed land, and that trend continues today. Grazing use on public lands has declined from 18.2 million AUMs in 1954 to 7.9 million AUMs in 2013.” (That is 2.3:1, BTW)
http://www.blm.gov/wo/st/en/prog/grazing.html
Nevada AUMs Authorized 1971-2010
1971: 2,198,371
1981: 1,651,936
1991: 1,693,508
2001: 1,304,781
2010: 1,138,171
http://www.blm.gov/nv/st/en/prog/grazing/animal_unit_months.html