HIGH SCHOOL & COLLEGE: Human Impact on the Elkhorn Slough and its Watershed In addition to our primary and middle school programs, the Reserve Education team has created a self-guided lesson for high school and college students. The multiple piece lesson focuses on observing human impacts on the Elkhorn Slough and its watershed and then applying that information to management questions. High School Orientation video Trail Flyover Slough and You – self guided walk at the Reserve, worksheet Reserve a virtual Microscope Lab experience with a naturalist: