Miller, known by many as "Mister Outdoors," had been a fixture on Utah television and radio for nearly 30 years.
He complained of pain on July 31 and was admitted to LDS Hospital for treatment of the condition, in which portions of the intestines become inflamed.
He died peacefully and surrounded by family, said Dave Phillips, vice president and general manager of KUTV Channel 2 News.
Miller moved to Utah in 1977 and became morning anchor for KSL Radio. He was named radio news director in 1979. He became KSL's sports director in 1989.
In 1995, Miller developed a weekly television program featuring Western outdoor adventures.
"The program developed a large loyal audience and made the name 'Doug Miller' legend among outdoor enthusiasts both locally and nationally," Phillips said.
The show won several awards from the Outdoor Writers of America and several regional "Emmy Awards," said Phillips.
In October of 2001, the show moved to KUTV Channel 2, where it remained strong. In addition to his program, Miller supported numerous outdoor conservation causes and was a popular public speaker.
Colleagues lauded Miller with planning, writing and producing every aspect of his show - 52 weeks a year.
"That's a daunting challenge, especially considering the travel and primitive surroundings - but Doug made it look easy," said Phillips.
"We're going to miss [him] a lot and really can't believe his adventures have come to an end," Phillips said.
Miller leaves behind his wife, Marilyn, a son, a daughter and two grandchildren. Funeral plans are pending.
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