GOLDEN, Colo. (CBS4) – A woman died in an accident while she was tubing with her family.

Firefighters arrived to the scene along the Clear Creek, near 11th Street and Maple Street, within two minutes, according to public information officer Karlyn Tilley, after receiving a call at about 1 p.m.

READ MORE: 3D-Printed Lamborghini Built By Colorado Family Is On Display At The Denver Auto Show

(credit: CBS)

Upon arrival, they found a 48-year-old woman unconscious and unresponsive.

(credit: CBS)

Apparently the woman flipped in her tube and went into and under the water.

It is unknown if she became unconscious before or after she went under.

READ MORE: Naming Board Approves Changing Squaw Mountain In Colorado’s Foothills To Mestaa’ėhehe Mountain

A witness told CBS4’s Melissa Garcia that rescuers had to cut out a section of fence at the top of the hill in order to bring the woman to safety.

“We saw the firefighters cut down the fence and everyone was running down there,” said Elias Olivas, Chief of Operations at Olivas Contracting. “They didn’t let us get too close, but you could see that [the victim] needed a lot of attention. They sent quite a few firefighters down there.”

(credit: CBS)

Firefighters did CPR, as well as a technical rescue with a basket to get her up the creek bank, and transported her to St. Anthony’s Hospital, where she passed away.

MORE NEWS: Sheraton Denver Downtown Hotel Unveils $80 Million Renovation

The Golden Police Department is investigating the death, but say that it does not appear to be suspicious at this time.