This excerpt shows that Kiger and Riddle HMAs are designated as an 'Area of Critical Environmental Concern'. It also shows that the "primary management goal of the Kiger Mustang ACEC is to perpetuate and protect the conformation and dun factor color characteristics".
This portion shows how and when horses from Kiger/Riddle will be gathered. Note the first paragraph, which states that "Gatherings will be conducted in a manner that will support accomplishing both horse habitat and horse herd objectives..." (i.e. cull (removing) horses that do not fall within the herd objectives.)
This portion continues with the gather protocol for horses in Kiger/Riddle. Note at the end of the paragraph it states, "A few animals may be relocated to other HMAs."
This portion states that fences are maintained by grazing permittees.
This portion states which gates will be open or closed at any given time. Also note the last paragraph that talks about horses leaving the Riddle HMA.
This portion shows the Objectives set for the horses within the Kiger and Riddle HMAs, including herd size and horse colors.
This portion is a continuation of the Objectives set for the horses within the Kiger and Riddle HMAs, specifically horse markings, height and other physical characteristics.
This portion is a continuation of the Objectives set for the horses within the Kiger and Riddle HMAs, including sex ratio, exchanges between HMAs and the monitoring plan.
This is from the 1996 ACEC document covering the Kiger & Riddle HMAs. ACEC stands for 'Area of Critical Environmental Concern'.