All this water descends from the Height of Land to the sea level.
My next camp was at Shankula, 7450 feet above the sea level.
Upon consulting our barometer we find we are 12,000 feet above the sea level.
It grows from sea level in Alaska up to 7,000 feet or more in the South.
North Yakima is at an altitude of 1067 feet above the sea level.
We might as well try to fix the sea level by pressing on the ocean.
The bed of this valley is seven thousand feet above the sea level.
At 300 miles it is computed to be about one two-millionth as dense as at sea level.
Bring him back here or go to sea level—only beware of high passes.
At 2,000 feet it is half as much again as it is at sea level.