If you have lost an animal in the city or have found an animal running loose, there are several steps that should be taken for the safety of the animal, as well as the public. To report a found animal, contact the Thornton Communications Center by calling 720-977-5150. If you are inquiring about a lost animal, call Thornton Animal Control at 720-977-5250 and the shelter at 303-288-3294. Please provide a description of the animal and any information on the animals tags.