The Grand Canyon of the Tuolumne River @YosemiteNPS. Hetch Hetchy reservoir to Lembert Dome. #FindYourPark #NPS100https://t.co/Ht98hl5KZC
— Jeff Williams (@Astro_Jeff) July 19, 2016
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Tuesday, July 19, 2016
The Grand Canyon of the Tuolumne River. Yosemite National Park. Hetch Hetchy reservoir to Lembert Dome. | NASA Astronaut Jeff Williams | International Space Station
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