Search Intensifies for Man and Dog Missing on Homemade Raft in Colorado River

Thomas Lee Robison and his Welsh Corgi remain unaccounted for after embarking on a risky river journey in a self-constructed raft.

Thomas Lee Robison, 58, from New Mexico, was last seen attempting to navigate the Colorado River at Grand Canyon National Park with his dog.
Robison's abandoned vehicle, a 2001 Toyota Tacoma, was found at Lee’s Ferry, a key access point to the river.
The National Park Service has issued a missing person alert and released photos of the makeshift raft, described as consisting of wooden planks and ropes.
Authorities urge anyone with information on Robison's whereabouts to contact Grand Canyon Dispatch.
Search efforts continue as the river leads towards Lake Mead, a journey that normally takes three days by current.