A Florida father disappeared more than two weeks ago while visiting a friend in the Northern California mountains — leaving his desperate family searching for answers. Robert Jamieson, 45, of Milton, Fla., was last seen on April 8 when he left a friend’s home on foot in the Burnt Ranch area in Shasta-Trinity National Forest, according to the Trinity County Sheriff’s Department . Rescue crews conducted extensive ground and drone searches in the days following his disappearance but came up empty. Robert Jamieson, who lives near Pensacola in Milton, Florida, and has still not been found. gofundme Jamieson left behind his vehicle, a dog and personal belongings before vanishing, the sheriff’s department said. He had also shown concerns “about being tracked and may have discarded his phone,” a notice from the sheriff read. Sign up for the California Morning Report newsletter California's top news, sports and entertainment delivered to your inbox every day. Thanks for signing up!…