Prairie Smoke at Hayden Prairie.  Hayden Prairie is a 242 acre natural prairie that is located 5 miles west of Lime Springs, Iowa on county road A23.  It is just a ways south of the Minnesota border. Hayden Prairie has never been under the plow, and it is the best natural prairie we have ever seen. The prairie flowers are just now beginning to bloom and they will continue to put on a show from now up until a hard freeze.  We try to visit this prairie every week from about mid-May on.  The prairies at Leroy's Lake Louise State Park are also very interesting all summer long.