For more than a decade, survey flights have crisscrossed the United States using gravity instruments to calculate a new sea level in an effort that will save the country billions of dollars on ...

ABIQUIU LAKE, N.M. -- Throughout the 56 years the U.S. Army Corps of Engineers, Albuquerque District has been operating Abiquiu Lake as a flood control and water supply dam in the Chama River Valley ...

CHICAGO--A Field Museum scientist has developed a novel way to determine land elevation as continents moved around the Earth through geological ages. Knowing how high mountains and plateaus were in ...

Climbers descend along Borah Peak’s Chickenout Ridge. Borah is actually four feet taller than traditionally thought, according to data from a new elevation measurement technique. Idaho Statesman file ...