OSO, Wash. -

President Barack Obama is scheduled visit the scene of Washington state's devastating mudslide Tuesday. He'll find a haunting wasteland of shattered timber and deep muck, dotted here with the wreckage of a pickup truck, and there with a young girl's flip-flop.

He'll also find lingering signs of perseverance and gratitude, like the message scrawled to responders in the window of the Trafton General Store that says, "Thank you so much for saving our community."

The remains of 39 people have been recovered from the scene of the March 22 landslide 55 miles northeast of Seattle. Crews have narrowed their main search area in a meticulous effort to find the last four bodies.

The White House says Obama plans to survey the damage and meet with victims and recovery workers.