Except in areas officially designated for off leash activities, it shall be unlawful for any owner, possessor or authorized agent of any owner to fail to restrain a dog by physical means from running at large, as defined in this section, within the city limits. A dog shall be deemed to be running at large, and permitted by the owner, possessor or agent to run at large under any of the following circumstances:

(1) When the dog is off or away from the premises of the owner or keeper thereof and not under the direct control of such owner, keeper, or a member of his immediate family, either by leash, cord or chain, not more than eight (8) feet long;

(2) If the dog is left unattended on any public property, whether or not the dog is secured by any leash, cord, chain or other means; or

(3) If the dog is left unattended in any vehicle parked on public property, unless the dog is secured within such vehicle by means of the natural enclosure of the vehicle or by means of a leash, cord or chain not more than six (6) feet long.

Within areas that have been officially designated as off leash areas, dogs may be allowed to run at large, subject to such rules and regulations as may be determined by the director or parks and recreation, which rules and regulations shall be posted on site at the designated off leash areas. All dogs utilizing the off leash areas must be under visual and voice control of the owner or keeper at all times. It shall be the responsibility of the person taking a dog to an off leash facility to clean up and remove any fecal material deposited by such dog. Aggressive dogs shall not be permitted within the off leash areas. Owners of dogs shall be legally responsible for any and all injury or destruction of property caused by their dog.

This information was gathered from www.durangogov.org

For specific information for other towns' leash laws, please contact those town governments. For information on Durango Dog Park go to http://www.durangodogpark.com.