The Jockey Club

State by Ranking	Mares Bred	Stallions	Avg. Book
US Distribution of Active Stallions and Mares Bred For the year: 1990
California	1	1	1.0

Total	1	1	1.0
States ranked by number of mares bred. Mares bred to two stallions in the same breeding season are counted twice. Source: The Jockey Club