Take a guided nature/history tour of Glass Hill in the Cache River State Natural Area with natural
heritage biologist Mark Guetersloh. Glass Hill (also known as Cypress Citadel and Round Bluff) is a
sandstone knob covered by upland wood and home to Woodland Indians for many years. Meet at IDNR parking lot on Pendleton Road off Dongola-Cypress Road. Call 618-657-2064 for more information.