www.phsspca.org Pasadena Humane Society. This zoo-like setting is by far one of the most impressive shelters that I have ever seen in my many travels. The setting is in an open air environment with shade, sunshine, trees and is a must see . This is located just outside of L.A. California. They even offer information on their site about Dog Licensing procedure in their area.They also have a link to purchase ID tags for the safe return of lost pets.