Robert James Henson was 45 years old when he was last seen on May 25, 1990, in the Hummingbird Falls and Creek area near Rocky Mountain House, Alberta. Henson, a male born in 1944, had gone into the area on horseback and was riding along the river when something went terribly wrong. According to the official Canadian missing-person record, he was swept down the river while riding his horse. The brief official account does not describe exactly how he entered the water, whether the horse lost its footing, or whether anyone directly witnessed the moment he was carried downstream. What is clear is that the horseback outing ended with Henson disappearing in the river environment of the Hummingbird area, and he was not recovered in the immediate aftermath described in the public record.
The setting helps illustrate the difficulties surrounding Henson's disappearance.
The Hummingbird Recreation Area lies in the backcountry west and southwest of Rocky Mountain House and has long been associated with horseback riding and wilderness travel. Modern descriptions of the area identify trails following Hummingbird Creek and surrounding waterways, with creek and river crossings forming part of routes through the region. The broader landscape includes forest, mountain valleys, streams and trails extending well away from developed areas. Although present-day trail descriptions should not be treated as an exact reconstruction of conditions in 1990, they demonstrate the type of remote, water-crossed terrain in which Henson vanished. Once a person is swept into moving water in such an environment, the combination of current, rocks, debris, changing water levels and difficult access can create formidable challenges for locating that person.
The official record provides a physical description that could help distinguish Henson from others. He is described as a white male with a light or fair complexion, blue eyes and grey hair. At the time he disappeared, he stood approximately 5 feet 9 inches tall, or 175 centimeters, weighed about 203 pounds, or 92 kilograms, and was described as having a heavy build. The national case record does not provide a description of the clothing he was wearing that day, and it does not publish additional identifying marks or features. It also does not explain what happened to his horse after the incident or provide a detailed chronology of the search efforts that followed. Those gaps leave much of the immediate aftermath undocumented in the publicly available record, making the central facts of the case unusually stark: Henson entered the Hummingbird Falls and Creek area on horseback and disappeared after being swept downstream.
Robert James Henson's disappearance is recorded by Canada's national missing-person system under case reference 2014001627, with the Rocky Mountain House RCMP identified as the investigating police agency and a separate police reference number of 2021811954. The published case information asks anyone with information to contact the Rocky Mountain House RCMP or Canadian Crime Stoppers. Decades after that day in May 1990, the publicly released information remains limited, with no detailed account explaining exactly where Henson was swept into the river, how far downstream investigators searched, or what physical evidence may have been recovered. His case therefore remains defined by one sudden event in Alberta's backcountry: a 45-year-old horseback rider entering the Hummingbird area and being swept away in the river, followed by years in which the available public record has provided no definitive explanation of what happened beyond that point. For those who have carried his memory through the years, Robert's case is an enduring reminder of how quickly an ordinary day in the wilderness can become a lasting disappearance, and the overview remains tragically simple—Robert James Henson was last seen horseback riding near Hummingbird Falls on May 25, 1990, when he was swept down the river near Rocky Mountain House, leaving behind a case with very few publicly known answers.Last Seen: May 25, 1990
