NOTICE: Tomorrow, Friday August 22, the leassee of the agricultural fields on the site will be spraying a herbicide to combat the growing population of invasive Johnson Grass. It’s advised that people stay off the trails/fields north of Collinsville Road for 12 hours.  Signs will be posted at these locations.  If you are planning to walk or otherwise use the grounds tomorrow, the area behind the Interpretive Center, The Grand Plaza, is not near the application of herbicide.  Your understanding in this matter is greatly appreciated as we work to ensure the health of our landscape.