...Snelling's historic polo grounds, a proposal that recently won approval from the National Park Service. The Fort Snelling State Park Association on Friday served a lawsuit on the Minneapolis Park and Recreation Board and other city and state officials...

...Office and the U.S. Advisory Council on Historic Preservation also signed off on the plans. But the Fort Snelling State Park Association, a citizens group that has been fighting to preserve the 40-acre site once used for polo matches and...