By Tribune staff A rural Viola farm with more than 1,100 acres along the Kickapoo River has been donated to the Mississippi Valley Conservancy for preservation, the La Crosse-based land trust announced Tuesday. The property, valued at $2.5 million, marks the largest single gift to the conservancy since it started in 1997, and raises the total number of acres in trust to 11,000 in seven counties, MVC President George Kerckhove said. The 1,129 acres came from the Babson family, which for many years owned the Chicago-based Surge milking machine business. The land is adjacent to the Tunnelville Cliffs State Natural Area already owned by the MVC, said Tim Jacobson, executive director of the conservancy. “It is an astonishing gift that gives further protection to important ecological features and wildlife, as well as increasing public access to this spectacular part of the Wisconsin landscape,” Jacobson said. Jean Babson said her late husband James, who was president of Babson Brother Co., bought farms in the area 35 years ago and consolidated them into a grazing operation with as many as 1,000 beef cattle. The conservancy plans to use prescribed burns to restore some of the native habitat, Jacobson said, and will work to control invasive species on the land.