|A swallow swings low over the river.|
What do they do? The Trust organizes river clean-ups, restoration of regions burned by the Rim Fire, and educational opportunities for children and adults. They also do political advocacy, as a voice for the river itself in the cacophony of agricultural and urban water interests. It's a great organization that deserves your support!
|Exposure of Valley Springs Formation along the Tuolumne River|
A bit further downstream there are exposures of the Mehrten Formation. It originated from volcanic mudflows related to the Cascades-style stratovolcanoes that once existed near the present day summit of the Sierra Nevada around 10 million years ago. Sediments within the unit have yielded an array of fossils including ancient camels and horses, giant tortoises, and strange 8 foot long saber-toothed salmon! Younger rocks above the Mehrten have given up Mammoths, Mastodons, Saber-tooth Cats, American Lions, Short-faced Bears, and Giant Ground Sloths, along with many other ice age species.