Home » Facts Zoar Valley MUA has the TALLEST Basswood tree in the world! According to the DEC, a 128 foot tall basswood within Zoar Valley has been reported to be the tallest basswood in the world. in Autumn Spring Summer Winter Nature Gowanda Email this page Travel Guide It's a full 56-page comprehensive guide, highlighting the activities and attractions in our County and it's FREE!! View the visitor's guide online or request that the Enchanted Mountains guide be snail mailed to you for FREE! Related Events 2018 Southern Tier Corporate Challenge 2018 Chamber Golf Classic 2018 Taste of Olean/Art in the Park GOACC's Santa Claus Lane Parade 2018 The Battle Series Horse Show