![]() The same storm deepened the gorge and formed Avalanche Falls. A heavy rainstorm in June of 1883 started a landslide that swept the boulder from its place. The rock was 10 feet (3m) high and 12 feet (3.6m) long. At that time, a huge egg-shaped boulder hung suspended between the walls. She had trouble convincing her family of the marvellous discovery, but eventually persuaded others to come and see for themselves. The Flume was discovered in 1808 by 93-year-old “Aunt” Jess Guernsey when she accidentally came upon it while fishing. After the Ice Age, Flume Brook began to flow through the valley again. It partially filled the valley with glacial debris and removed soil and weathered rock from the vicinity. The gorge was covered by glaciers during the Ice Age, but the ice sheet did not greatly change the surface. Over the millennia erosion formed the gorge as we see it today. Nearly 200 million years ago during the Jurassic Period, the Conway granite that forms the walls of the Flume was deeply buried molten rock. The walls of Conway granite rise to a height of 70 to 90 feet and are 12 to 20 feet apart. The Flume is a natural gorge extending 800 feet at the base of Mount Liberty. The highlight of the trail is the Flume Gorge. The trail begins and ends at the Flume visitors centre which has a great little shop and information about the park itself. Before you head to the Flume I suggest checking on the website as to what is in place for entry. Also, these tickets had to be purchased online. We visited during the Covid-19 pandemic, and the New Hampshire park service was doing timed ticket entries to limit numbers. There is a large parking lot but as we found out it was not too easy to find a spot to park! So, I would suggest coming early or later in the day. Of course, whilst the summer is not the perfect time to visit it is still very busy because this is school vacation time. Our journey here took place in the height of summer, which doesn’t have the draw of some of the other seasons but this shouldn’t put you off visiting during this time. ![]() The lava is darker in color than granite walls.The White Mountains of northern New Hampshire are incredibly beautiful and are a year-round destination, whether it be for the fall colours, winter sports or meadows filled with spring flowers. In a few places marked by signs the remnants of the original dike are preserved in the bed of the gorge and small branches or off-shoots can be seen along the canyon walls. The original flume thus formed has been further widened by frost and water action. This lava solidified to form dikes.Īs ages passed the main dike was worn away leaving the flume gorge. The granite rock which makes up the walls of the Flume was formed many millions years ago in ancient geological time.Īt a later period dark-colored lava in a molten condition pushed up from below filling a great crack and smaller side cracks that had been formed in the granite. Unlike most waterfalls in Upstate NY (which were carved by the retreating glacier), this gorge was formed underneath the surface of the earth and released by lava. Do I need to print tickets for the Flume gorge?.What is the best time to visit Flume Gorge?.
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