Single-Vehicle Crash Early Sunday Near Keystone Kills One Posted by John Axtell Date: December 27, 2020 809 Views The South Dakota Highway Patrol says a 63-year-old male was killed early Sunday morning in a single vehicle accident in the Black Hills near Keystone. The name of the man is being withheld pending notification of family. The Highway Patrol says the man was alone about 2:30 AM when his SUV went off Hwy 44 a mile east of Keystone, hit a ditch, and rolled. He was apparently not wearing a seatbelt and was pronounced dead at the scene.