United States of America
The Ipswich River Wildlife Sanctuary, which is one of the Massachusetts Audubon Society’s largest wildlife sanctuaries, is located in Topsfield and Wenham, Massachusetts. Much of its 1,955-acre (7.91 km2) landscape was created by a glacier 15,000 years ago.
Listen to the audio guide for Ipswich River Wildlife Sanctuary Free on WIP — starts by itself when you arrive, even with the screen off