Some of the human impacts on water and land that we can see in Glenorchy Conservation Area are local, and can be managed within the property. For example, the damage caused by illegal all terrain vehicle riders takes place within Glenorch, and can be managed there. In contrast, water quality in the portion of Sixteen-Mile Creek that flows through Glenorchy Conservation Area is largely a function of upstream activities. We can't protect and improve conditions in Glenorchy Conservation Area without addressing the upstream impacts of land development, agriculture, recreation, transportation, and other human activities that take place upstream.