Nin, the best cow-pony on the Mariposa Ranch, was famed from California to Texas for her beauty and breeding. With a skin of living sunlight and a flaxen mane and tal, under her silver saddle she was the pride of her home corral as well as of stock show audiences. But poor Nina lowered her head in shame when her first colt Sally appeared in the world with a brown mane and tal and coat. Sally was a disappointment in other ways too. She hated cows, the way they smelled, the way they looked, and even the way they moved. This beautifully written narrative is the story of Sally's adventures. How she became famous herself---as a mountain ranger. Exciting reading for children who love nothing better than a horse story.