Lower Colorado River flows threaten Grand Canyon rafting businesses
Lees Ferry fell to about 10,000 cfs, and Grand Canyon outfitters are already feeling it as one Arizona rafting company reported bookings down 25%.
Lower water at Lees Ferry is tightening the screws on Grand Canyon rafting just where every trip begins, and guides are looking at more than a rough season. With flows around 10,000 cubic feet per second, among the lowest seen there since the 1964 average, the canyon’s river corridor is starting to feel less forgiving for launches, boat handling in the rapids and the business math that keeps multi-day trips running.
The pressure is showing up in bookings and in conversations on the river. Arizona Raft Adventures said reservations were down about 25% this year, and owner Fred Thevenin said he could not pin the drop on one cause. The low-water concern traces back to a historically dry winter snowpack in parts of the West, which left less water in Lake Powell and less to release through Glen Canyon Dam into the Colorado River.
That matters because the dam is the throttle for Grand Canyon boating. Releases can change daily for power generation and grid regulation, with instantaneous flows allowed to swing by about 1,300 cfs above or below the scheduled release rate. When the base level is already low, those swings can have a bigger impact on trip timing, launch planning and how guides read the river from day to day.
The commercial side of the canyon is not small. Grand Canyon National Park selected 16 companies in 2023 to provide guided multi-day whitewater trips on the Colorado River, and those operators serve about 22,000 passengers a year while generating roughly $46 million in gross revenue. That makes low water more than a river story. It reaches straight into the regional adventure economy built around permits, gear, staffing and clients willing to spend for a once-in-a-lifetime run.
There is also a longer horizon pressing in from behind this season. The Grand Canyon Trust says the current Colorado River operating rules expire at the end of 2026, while basin flows fell about 20% from 2000 to 2021 and could decline another 30% by 2050. The group says the river basin has been in a historic megadrought worsened by climate change, which means this year’s worry is part of a structural shift, not a one-off dip.
For boaters, the headline is simple: the river is still runnable, but every drop in flow makes the canyon harder to plan around and harder to sell. Lees Ferry is where the season’s tension starts, and if the river keeps sliding, Grand Canyon rafting will have to keep adjusting with it.
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