Mount Shear (78°20′S86°8′W) is a mountain over 4,000 m, standing 4 miles (6 km) northwest of Mount Tyree in the Sentinel Range, Ellsworth Mountains, Antarctica. It surmounts Patton Glacier to the northeast. The peak was discovered by the Marie Byrd Land Traverse Party (1957–58) led by C.R. Bentley, and was named for James A.