On May 19th of next year, runners in the 13.1 mile half marathon course will go through an urban jungle ... literally: one mile of the course will run through the Denver Zoo. Runners will see the cheetahs, Monkey Island, the new Toyota Elephant Passage and more.

The Colfax Half will be the only race in Denver to run through the Zoo. The exotic trip will take place during mile 3. Runners will alsogo around Aurora's City Park,through Aurora Fire Station #1, and enjoya canopy of shady trees on 17th Avenue.

"We're thrilled support the race and bring runners through Denver Zoo," says Denver Zoo spokeswoman Tiffany Barnhart. "Runners will get to pass through our new 10-acre exhibit for Asian elephants, greater one-horned rhinos and Malayan Tapirs. Toyota Elephant Passage is the only elephant home of its kind."

"The Colfax Marathon is an event that the city goes ape for every year," said Denver Mayor Michael B. Hancock. "With the half marathon race snaking through the Denver Zoo, runners and spectators alike will get to enjoy a lion's share of racing fun in one of Denver's greatest cultural gems."

The Colfax Marathon offers seven events during the weekend of May 18-19, 2013.Registration is open. For more information visit