a. A term used in the Southwestern United States for a recess or hollow in
a cliff or a reentrant in the borders of a mesa or plateau. Also called a
cove.
b. A term used in the Southwestern United States for a small, secluded
valley.
c. A bend in a stream.--Etymol: Spanish rincon, inside corner, nook.
Source:
Dictionary of Mining, Mineral, and Related Terms