California State Parks
An image of Robert L. Stevenson State Park where Mount St. Helena is located in Northern California.
An avid BASE jumper died Sunday after colliding with the side of a mountain and calling for help from Napa County authorities.
The Santa Rosa Press Democrat reports that 35-year-old Walden Grindle had hiked up a fire trail to the top of Mount St. Helena and jumped off with a parachute.
Napa County sheriff's Sgt. Doug Pace says Grindle called someone from his cellphone after breaking his hip in the collision.
Grindle had also activated an emergency beacon, and authorities were dispatched at 12:40 p.m.
Crews found Grindle, who was recently married, dead at about 1:10 p.m.
Walden had been arrested previously for jumping off El Capitan in Yosemite National Park.
BASE jumpers leap from high places: buildings, cliffs or other perches, and parachute down.