• Dogs in Denver public parks must be on leash.
• The ordinance does not specify the length of the leash.
• The ordinance does specify that the leash be held.
• Dogs may only be off-leash at designated off-leash enclosures.
• 1st Violation - $80; 2nd Violation - $150; 3rd Violation & subsequent: $300

HERE is a link to the ordinance.

HERE is a link to a PDF of the ordinance.