Kiger Mustangs
Kiger Mustangs were discovered in 1977 in southeastern Oregon. They show a close relation to the Spanish horses brought over in the 1600s.
The Kiger Mustang is an established breed. Many existing Kigers can be traced back to a single stallion named "Mesteño", whose name means stray or feral in Spanish.

Characteristics
The Kiger Mustang mares are primarily dun in color. Typically a dun horse shade is a muted tan or a light brown-gray with dark brown or black manes. The horse may have many, but not all, of the primitive markings which include the dorsal stripe, two-toned manes and/or tails, zebra-like stripes on the upper legs and shoulders, dark color around muzzle and ears with dark outlines and lighter interiors.

Kigers, as a rule, are agile and intelligent, with the stamina and surefootedness seen in many feral horse breeds. They are bold and have lots of courage and determination but are gentle and calm. They are great for pleasure and trail riding, performance, endurance, driving, and many other situations where an athletic horse is desired.

The horse featured in the animated film Spirit, was based on a real Kiger Mustang called "Donner".