The West Lebanon Wetlands are found behind Walmart and Price Chopper off NH-12A in West Lebanon.  While not very attractive and somehow given the name Cranberry Pond, this site has had some amazing wildlife, including a river otter. How otters got there, with the Connecticut River beyond many parking lots, is a mystery.
From Jim Block

The Cranberry Pond Wetlands are adjacent to the parking lots of businesses on North Plainfield Road.