Columbia Land Trust says it has acquired 115 acres of land on Mill Creek Ridge southwest of The Dalles to conserve wildlife habitat.  Mill Creek Ridge is home to an expanse of oak woodlands and wildflower meadows.  The woodlands and native grasses support pollinators along with migratory and resident birds.  The land trust group had acquired more than 300 acres in the Mill Creek Ridge area in the last decade, but they had been divided until the 115 acre parcel was acquired late last week.  The Oregon Watershed Enhancement Board, American Bird Conservancy, and a donation from local landowners helped pay for the land acquisition.  Land Trust staff will now control weeds, monitor tree health, and do plantings where necessary.