Spruce Creek and Warriors Mark Run are prominent natural trout streams in the Spruce Creek Watershed (part of the Chesapeake Bay Watershed) in Central Pennsylvania. Since 2001, the Geology Department at Juniata College has been studying nutrient contamination in these streams to facilitate improving the water quality for ALL organisms (from trout to people) that rely upon these important resources. This website includes information for a wide audience: farmers who want to efficiently utilize the stream while protecting the environment, other residents of this and similar watersheds, environmental regulatory agencies, researchers interested in nutrient-loading, and many others. The four pictures surrounding this paragraph are links to more detailed in formation. If you are new to this website, we suggest that you start with "The Watershed" link to learn where and what these streams are.