OREGON — A historic state-tribal collaboration in Oregon has stalled after a charitable foundation pulled out of a potential land deal. The Oregon Department of Fish and Wildlife was preparing to purchase 11,438 acres of private timberland using a federal grant. The area is about 10 miles southwest of La Grande in the Blue Mountains. The agency planned to manage the land alongside the Confederated Tribes of the Umatilla Indian Reservation — the first such collaboration in Oregon. But the landowner, the Harry A. Merlo Foundation, has withdrawn from the deal “for undisclosed reasons,” according to the Oregon Department of Fish and Wildlife. The state wildlife department and tribes had secured $22 million in federal funding to acquire and co-manage the land. …The plan was to restore this swath of forests and meadows for elk and salmon habitat.