South Dakota Cooperative Extension Service
Judging South Dakota Rangelands for Livestock and Wildlife Values is a major advance in the approach to contest judging of South Dakota rangelands. For 25 years beginning in the mid-1970s, range judges identified plants and determined range site, range condition, and management practices for a given set of goals (Johnson et al., EC 731, 1979). In the mid-1990s, the need for a more contemporary judging contest was clear. Oklahoma led the way by changing the National Range Judging Contest in 1994. A year later, South Dakota followed. Several years of field tests and multiple revisions resulted in the current manual.
Johnson, James R. and Sterling, L. Michael, "Judging South Dakota Rangelands for Livestock and Wildlife Values" (2009). SDSU Extension Circulars. 480.