Water Resources
WATER RESOURCES A tributary of Black Rock Brook, a DEC-classified Class A trout spawning stream, flowing from the Upper Reservoir in Black Rock Forest. This Brook flows into Idlewild Creek, locally known as Canterbury Brook. CHAPTERS, MAPS, AND RELATED CONTENT Watersheds Watersheds & Sub-basins Map Groundwater & Aquifers Public Wells, Aquifers, & Risk Sites Map Floodplains Flood Zones & Flooded Roads Map Wetlands Wetlands & Hydric Soils Map Appendix C: Summary of Municipal Wetland and Watercourse Protection Techniques Appendix D: National Wetland Inventory Wetland Classes Streams & Water Quality Stream Classification Map Stream Biomonitoring & Priority Waterbodies Map Cornwall Natural Resources Inventory 2019 | 49 WATERSHEDS Map(s) referenced: Watersheds & Sub-basins Why You Need This Map When we view our communities using satellite imagery, we see the developed areas, green space – in the form of woodlands, farmland, and meadows – and waterbodies, such as streams, river, lakes, and wetlands. In a two-dimensional viewing, it is difficult to visualize the direction in which water naturally flows. A watershed map serves the purpose of identifying the direction in which all surface waters flow within a specific land area to a waterbody. Highpoints, such as ridges, mountains, and hills, form the typical dividing lines of watersheds and represent the point from which all water flows downward. Watersheds may be further divided into the smaller drainage areas, known as subwatersheds. Because municipal boundaries rarely follow watersheds, working in a watershed context requires communication and coordination between multiple municipalities. Maintaining healthy watersheds is important because they provide critical natural services that sustain and enrich our daily lives, such as plentiful and safe drinking water.
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