a mountain peak in the St. Elias Range in the southwestern Yukon Territory in Canada (19,850 feet high)
"The climbers reached Logan, the highest mountain peak in the St. Elias Range of the southwestern Yukon Territory, to witness the breathtaking sunset above the clouds."
A rocking or balanced stone.
"The old map showed that our campsite was located in a deep logan."
A marsh.
"The logan berry grew wildly along the riverbank, creating a thick patch of fruit-bearing bushes in summer."
A town in Ayrshire, Scotland, from lagan (“dell”).
"The hikers camped overnight at Logan, a quiet village in Ayrshire whose name derives from the Gaelic word for dell."
The word likely comes from a related Old Norse term meaning "to wag one's tail." It entered English as a surname before becoming associated with famous trees and places.