The 5-month-old baby rescued from the Oso landslide is listed in serious condition and improving at Harborview Medical Center in Seattle.

The hospital said Sunday that Duke Suddarth remains in the intensive care unit.

His mother, 25-year-old Amanda Skorjanc, is in satisfactory condition at the hospital.

Three men rescued from the March 22 slide also are at the hospital. A 37-year-old is in serious condition in intensive care. An 81-year-old in serious condition in intensive care. And a 58-year-old is in satisfactory condition.

The family of the mother and baby released a statement through the hospital, saying "We are so grateful to all the responders who jeopardized their safety in order to pull Duke and Amanda out of the debris. Words alone cannot tell you how thankful we are. Our hearts and support continue to go out to everyone who has been affected by this tragedy."

Meanwhile, Washington state Gov. Jay Inslee took another tour of the site of the massive Oso landslide by helicopter, saying the scene is considerably different than last week.

Inslee said Sunday during a news conference at the airport in Arlington that the operation at the debris site is "very, very extensive," noting front-end loaders and other heavy equipment as well as hundreds of workers searching and building a corridor to link both sides.

He said planning is just beginning for long-term housing needs and for re-establishing State Route 530 in the area between Darrington and Oso. Inslee says no specific plans exist yet, but that they will include extensive public comment, especially regarding the 530 corridor, adding that it will be done in a way that is sensitive to families who have lost loved ones in the slide.