The Chimney Rock is one of the most famous and recognizable landmarks in Morrill County in western Nebraska in the United States. A remnant of the erosion of the bluffs at the edge of the North Platte Valley, the slender spire with a conical base rises nearly 300 feet above the surrounding valley and is visible for many miles from the east along U.S. Route 26. The imposing formation is composed of layers of volcanic ash and Brule clay dating back to the Oligocene Age - 34 million to 23 million years ago. It is located approximately four miles south of present-day Bayard in Millard County.

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