Two Las Vegas locals spent seven days walking 112 miles from the Spring Mountains to Lake Mead, then turned the punishing trek into a short documentary that hit the internet this week. The film, The Great Depletion, follows wildlife conservationist Alex Harper and filmmaker Austin Williams as they move through a drying landscape, relying only on spring or tap water along the way.
According to KTNV, the pair completed the route, uploaded the short film, and lined up in-person screenings at the Springs Preserve on Aug. 23 and the Winchester‑Dondero Cultural Center on Aug. 26. In that coverage, the filmmakers describe the journey as part adventure and part reporting, a way to literally trace the valley's water from mountain springs down to the Colorado River.
On the trail: sparse water and a single spring
Harper and Williams told reporters they drank only free water on the trip, meaning what they could collect from springs or get from municipal taps. The Las Vegas Review‑Journal notes that Harris Springs served as the only natural fresh source they reached before hitting the Colorado River along their route. Harper, a Las Vegas birding guide and naturalist, put it bluntly: "water is the limiting factor for us, too," a reminder of how quickly supplies vanish once you step outside the valley's irrigated edge.
Why the film matters to Southern Nevada
Federal forecasts show Lake Mead could drop to record lows over the next two years, a decline reflected in the June 2026 24‑Month Study from the U.S. Bureau of Reclamation. Bronson Mack of the Southern Nevada Water Authority warned that "it is uncertain as to what the shortage conditions will be next year or even in 2028," a caution quoted in reporting from KTNV and echoed across recent local coverage.
Local roots and what's next
Harper works as a birding guide in Las Vegas and Williams works in real estate, while Sam Arikawa helped scout the route and map locations for the project, according to the Las Vegas Review‑Journal. The filmmakers are raising funds to support travel and production and say they plan a similar, two‑week hike along the Rio Grande in April 2027 to document another arm of the basin's decline.
The Great Depletion's online debut, paired with upcoming screenings at neighborhood institutions, gives Las Vegas residents a clear, close-to-home lens on a river many only know from the reservoir. The film's straightforward, on‑the‑trail style keeps the camera fixed on the water itself: where it comes from, what is left, and how quickly the desert around it is changing.
