Mountain
Heights of mountains are typically measured above sea level. Using this metric, Mount Everest is the highest mountain on Earth, at . There are at least 100 mountains with heights of over above sea level, all of which are located in central and southern Asia. The highest mountains above sea level are generally not the highest above the surrounding terrain. There is no precise definition of surrounding base, but Denali, Mount Kilimanjaro and Nanga Parbat are possible candidates for the tallest mountain on land by this measure. The bases of mountain islands are below sea level, and given this consideration Mauna Kea ( above sea level) is the world's tallest mountain and volcano, rising about from the Pacific Ocean floor.
Grays Peak
Grays Peak is the tenth-highest summit of the Rocky Mountains of North America and the U.S. state of Colorado. The prominent fourteener is the highest summit of the Front Range and the highest point on the Continental Divide in North America. (There are higher summits, such as Mount Elbert, which are near, but not on, the Divide.) Grays Peak is located in Arapahoe National Forest, southeast by east (bearing 122°) of Loveland Pass on the Continental Divide between Clear Creek and Summit counties. The peak is the highest point in both counties.