A man died Thursday afternoon after high winds flipped his kayak on Eleven Mile Reservoir, and Colorado Parks and Wildlife officers say the life jacket he was wearing did not fit him properly, shifting to cover his face after he went into the water. First responders spent more than an hour attempting CPR before declaring him dead at 4:30 p.m.
CPW officers responded to the reservoir near Lake George around 3:30 p.m. Thursday and pulled an unconscious man from the water, according to The Denver Post. Crews from the Hartsel Fire Department, South Park Ambulance, and Flight for Life assisted in the rescue and resuscitation effort, as reported by KUSA-TV 9NEWS. The Park County coroner has not yet released the man's identity.
Why a Life Jacket Wasn't Enough
CPW officials said the man was wearing a life jacket, but it did not fit him properly and shifted to cover his face once he fell into the water, according to the same report from 9NEWS. Officers advised that U.S. Coast Guard-approved life jackets must be fully zipped or buckled and fit snugly around the abdomen so they cannot slip over a person's head when someone enters the water unexpectedly. The detail underscores a distinction state officials are eager to highlight: wearing a life jacket at all is not the same as wearing one correctly.
Cold water compounds the danger for anyone who ends up in a Colorado reservoir, even briefly. Colorado Parks and Wildlife warns that most lakes and reservoirs in the state stay below 70 degrees Fahrenheit year-round, conditions that can trigger cold water shock, involuntary gasping, a racing heart, and muscle failure within about 10 minutes. That kind of sudden incapacitation can overwhelm even strong swimmers before help arrives.
A Reservoir Known for Sudden Wind
Eleven Mile Reservoir sits at 8,600 feet of elevation and spans 3,405 surface acres, and Colorado Parks and Wildlife notes that tricky winds and sudden afternoon storms rolling in from the west regularly whip up high waves capable of capsizing light watercraft. Park guidelines urge visitors to watch cloud formations and head for shore early when conditions start to shift. The reservoir is also the second-largest in Denver Water's municipal supply system and one of the largest bodies of water east of the Continental Divide, according to Denver Water.
This is not the first time high winds have turned deadly there. On August 1, 2025, a sudden afternoon windstorm knocked three paddleboarders and a dog into the water at the same reservoir, triggering an 11-hour search before CPW recovered the body of a paddleboarder who had not been wearing a life jacket, KRDO reported. The two other paddleboarders in that incident survived, and both were wearing life jackets.
Statewide Push on Water Safety
Under Colorado boating regulations, kayaks and paddleboards are legally classified as vessels, meaning at least one Coast Guard-approved wearable life jacket must be readily accessible per person on board, and children 12 and under must wear one at all times while underway. State law requires carrying a life jacket but does not mandate that adults wear it fully fastened unless a specific park rule says otherwise.
Colorado has recorded troubling water fatality numbers in recent years. The Denver Gazette reported that the state saw 30 water-related deaths through Labor Day weekend in 2024 and 32 in 2023, following a record 42 drownings in 2022, with CPW pointing to the absence of life jackets as a primary factor. To help close that gap, the Colorado Sun reported that CPW now operates free daily life-jacket loaner stations at roughly 25 state parks, while wildlife officers have ramped up water patrols and issued a record number of citations for life-jacket violations during peak summer months.
Hoodline has previously reported on similar tragedies at Colorado's state parks, including a fatal drowning at Lake Pueblo and an accidental drowning at Davis Camp in which the victim was not wearing a flotation device at all. The Eleven Mile case adds a further wrinkle to that pattern: even a life jacket worn on the water can fail if it isn't properly fitted and fastened before disaster strikes.
