Understanding Vermont WetlandsWetlands are where land and water meet. They are commonly called marshes, swamps, and bogs. Class II wetlands and their 50-foot buffer zones are regulated in Vermont because of the functions they provide, like flood water storage, water quality protection, and wildlife habitat. The location of wetlands is hard to identify because their hydrology and vegetation can change throughout the seasons. While the State has been working to update the Vermont Significant Wetlands Inventory (VSWI), many protected wetlands remain unmapped. Activity in a state-protected wetland or its associated 50-foot buffer zone is prohibited unless the activity is considered exempt, is an allowed use under the Vermont Wetland Rules, or is authorized by a wetland permit. However, not all projects can receive a state wetland permit. Before you start planning, check for wetlands on or near a property.
https://dec.vermont.gov/watershed/wetlands/check-for-wetlands