A 55-year-old Austin man is dead after search and rescue teams responded to a 911 call and located him in the McKittrick Canyon area of Guadalupe Mountains National Park, according to the Culberson County Sheriff's Office. Deputies say the man, identified as Mark Richard Walters, called 911 seeking assistance and provided GPS coordinates to authorities before crews found him with what appeared to be a gunshot wound to the head.
The Culberson County Sheriff's Office announced that deputies are investigating the death of the Austin man in Guadalupe Mountains National Park, according to NewsWest9. Per a Facebook post cited by the outlet, Walters called 911 seeking assistance and gave authorities his GPS coordinates before search and rescue teams were deployed to the canyon. The sheriff's office is investigating the incident as a suicide, though the case remains open and no official cause of death from a medical examiner has been reported.
A Grueling Search in Tough Terrain
McKittrick Canyon, where crews located Walters, is a restricted day-use area within the park with access gates that operate on set hours, running from 8 a.m. to 4:30 p.m. in winter and until 6 p.m. in summer, according to the National Park Service. The canyon's trail network climbs more than 1,200 feet toward a landmark known as “The Notch” en route to McKittrick Ridge, a route the National Park Service has designated the “toughest hike in Texas.” That steep, isolated topography routinely complicates emergency response in the Guadalupe Mountains.
Search and rescue operations in this stretch of West Texas typically depend on coordination among multiple agencies, including the Culberson County Sheriff's Office, the Texas Department of Public Safety, and U.S. Border Patrol BORSTAR units, given the region's remote desert terrain, per GearJunkie. It is not clear from available reporting which additional agencies, if any, assisted in this particular search.
A Documented History With Park Rangers
Walters had a documented history of federal legal trouble tied to a previous encounter with National Park Service personnel. In April 2022, Walters pleaded guilty in federal court to internet stalking and to being a felon in possession of a firearm, stemming from a March 2021 incident in which Big Bend National Park rangers confronted him during a verbal altercation at a visitor center, according to the U.S. Department of Justice. That firearm-possession sentence was later vacated. In February 2024, the U.S. Court of Appeals for the Fifth Circuit vacated the sentence due to sentencing guidelines calculation errors and remanded the case to district court for resentencing, according to court records reviewed by Justia Law.
That history offers context for why firearm-related incidents involving Walters on National Park Service land would draw close attention from federal and local authorities. It remains unknown whether federal probation or court authorities had any active filings regarding Walters at the time of his death, and the exact weapon involved has not been detailed in available reporting.
Federal Rules on Firearms in National Parks
Federal law enacted in 2010 allows park visitors to carry firearms in accordance with applicable state laws, but discharging a weapon within national park boundaries is prohibited under federal regulation, and weapons are separately banned inside federal facilities under federal statute, according to the U.S. Concealed Carry Association. Those rules frame the legal backdrop against which investigators are examining the circumstances of Walters' death.
Part of a Broader, Grim Pattern
Self-inflicted deaths are not unprecedented in the nation's park system. A Centers for Disease Control and Prevention epidemiological study found that the National Park Service recorded an average of 28 suicides and 13 suicide attempts per year across national parklands between 2003 and 2009. National Park Service incident records also document a prior suicide investigation at Guadalupe Mountains National Park in June 1991 that similarly involved a joint response between park rangers and county sheriff deputies.
More broadly, National Park Service mortality data covering 2014 through 2019 shows that park sites nationwide record an average of 358 deaths annually. That same data indicates 79 percent of recorded park fatalities occur among men, and that people aged 45 and older account for 52 percent of all park deaths — demographics that align with Walters' age and the circumstances described by investigators.
The Culberson County Sheriff's Office investigation into Walters' death remains active, and officials have not released additional findings beyond the initial search and rescue response. Hoodline has previously reported on other emergency operations in the same stretch of the Guadalupe Mountains, including a winter rescue amid extreme weather and a statewide search tied to a missing Culberson County woman.
