Marianne Eaton visits Hildene Estate in Manchester, Vt., for a look at the Nature Conservancy's efforts there to control invasive plant species in Vermont. A trout survey on Maidstone Lake in Vermont's Northeast Kingdom is providing vital information about the unique characteristics of native lake trout. Lawrence Pyne takes an eye-opening excursion to the American Museum of Fly Fishing in Manchester, Vt.

Lawrence Pyne heads to Waterbury, Vt., to fish for trophy trout on the Winooski River. Four Lake Champlain islands are important nesting areas for common terns, and they're part of the Audubon Society's important bird area program. A look at Groton State Forest's Becoming an Outdoor Family program, which hosts an annual event to help families enjoy the outdoors.