The Flume Gorge is a natural wonder located in Lincoln, NH, featuring an 800-foot gorge with towering granite walls and a 45-foot waterfall called Avalanche Falls. Discovered in 1808 by "Aunt" Jess Guernsey, the gorge offers a 2-mile loop trail that takes about 1.5 hours to complete, with plenty of stairs and uphill walking. Visitors can explore the picturesque covered bridge, Table Rock, Liberty Gorge, Sentinel Pine Bridge, and more. Pets are not allowed in the gorge, but there are designated dog walk areas nearby. Don't forget to bring your sense of adventure and enjoy the beauty of this unique geological formation!