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Spacecraft nadir point: 33.5° N, 122.6° W

Photo center point: 38.0° N, 119.0° W

Nadir to Photo Center: Northeast

Spacecraft Altitude: 306 nautical miles (567km)
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Image Caption: S48-603-22: Mono Lake, Yosemite fires, Mono craters. Two different views of the eastern scarp of the Sierra Nevada, California, centered on Yosemite Park and Mono Lake. The late afternoon sun highlights the relief in these scenes. Mono Lake is a large, saline lake which is the center of much environmental controversy (its inlet waters are diverted to supply LA with water). The re- gion is one of North America's active volcanic centers. The young Mono and Inyo craters line up south of Mono lake, with recent flows as young as 350-500 years. The plugs and craters themselves are roughly 6000 years old. Recently (1981), the Long Valley region was put on volcanic alert when a series of earth- quakes marked the injection of magma within 1 km of the earth's surface. Just west of Mono Lake is Yosemite National Park. Smoke from fires burning just north of the Hetch Hetchy Reser- voir are easily seen. The late sun also reflects brightly off of North Dome along the Yosemite valley (across from Half Dome), and the valley itself is hazy or smoggy.