PRAIRIE FARM, Wis. -- The owners said their horse might have spent a full day in a collapsed well at Prairie Farm in northwestern Wisconsin before being found and rescued by workers who dug a trench to get her out. Cory and Sandy O'Brien said they spent all day Wednesday searching for Cory's horse, Dolly, and finally found her about 5 p.m. in the well. According to the Barron County Sheriff's Department, the ground around the well collapsed and the horse fell back into the hole. Excavators with a backhoe were called in and dug the trench. Neighboring farmers and friends joined sheriff's and fire department personnel in working for hours to free the horse. Sandy O'Brien said Dolly was resting and eating Thursday but wouldn't stand up, apparently because of soreness.