2014-03-20 06:13:00 by Metro Networks, Inc.
(Grand Canyon National Park, AZ) -- Authorities are investigating the death of a Portland man at Grand Canyon National Park. Park rangers say 31-year-old Curtis Joyce died late Tuesday in a kayaking accident on the Colorado River. Joyce, who was reportedly part of a nine-person, 12-day private trip on the river, was found capsized and unresponsive. An autopsy is being conducted.