Grand County Sheriff Lt. Kim Neal said Monday that the two who died Nov. 29 while hiking to Delicate Arch were 65-year-old Toshiaki Amimoto and 60-year-old Etoko Amimoto of Torrance, Calif.

He says their son, 30-year-old Ryo Amimoto, suffered serious injuries but survived.

Neal says it appears the three slipped while on a steep slope in a sandstone bowl near the Delicate Arch. It had been raining and snowing with temperatures near freezing.

Delicate Arch is a four-story sandstone arch perched on the rim of a deep red rock canyon in southern Utah. Thousands of people each year make the 1.5-mile hike to view it.