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This salty pool, known as Badwater, is just about the lowest spot in North America.
Badwater, Death Valley NM, CA (1991).
The flagpole in this city park in the Imperial Valley reaches 240 feet UP to sea level.
Calipatria Park, Calipatria, CA (1987).
The highest building in the US, the stone shelter atop Mount Whitney was originally built as a solar observatory.
summit of Mount Whitney, Sequoia NP, CA (1968).
From Badwater, in Death Valley, one must look up 284 feet to a sign placed at sea level on the cliffs above.
Badwater, Death Valley NM, CA (1977).