SUBMISSIONS FOR THIS CONTEST HAVE CLOSED. STAY TUNED FOR THE VOTING ROUND, LAUNCHING MONDAY, Aug. 31.

What's the naughtiest thing your dog has done? Your answer could win a $2,400 prize pack for your pup.

Townsquare Media's My Dog Rox returns during the end of the dog days of summer looking for the ruff-est day man's best friends have bestowed upon Northern Colorado.

Enter by submitting a short description of the naughtiest thing your dog has done and a photo of your dog on our app — scroll down for instructions below. Submissions close on Aug. 27.

The best entries will be put to a popular vote starting Aug. 31. The dog with the most votes will win the $2,400 prize pack that includes training from Sit Means Sit Northern Colorado, and boarding and grooming services from K9 Corral.

Entrants must reside in Northern Colorado to be eligible to win.

Enter your number to get our free mobile app