Mark your calendars for Saturday, September 16, 2017 for fun and interesting times as Lassen County celebrates the 100 year of the dedication of its courthouse on South Lassen Street. The day first starts off that morning with another centennial dedication—Peter Lassen’s Monument. Among the many activities on tap that day include tours of the courthouse by members of the Lassen County Historical Society; a barbecue at the courthouse lawn; a cemetery tour at the nearby Susanville Cemetery and more to be topped off that evening with the Susanville Symphony’s Concert on the Green at the courthouse.