The original 1895 Engineering Building stood on the site now occupied by Norlin Library. In 1908, an Engineering Shops Building (demolished 2002) was built of red brick with an industrial style sawtooth roof. This was followed by a similar building to the west in 1918.
In 1938, a Klauder-style administration and classroom building was constructed, supposedly to "mask" the red brick buildings which were no longer considered modern. Engineering moved to new facilities in 1966.
The 1918 building became the Fine Arts building, named for Muriel Sibell Wolle (1898-1977), long-time head of the Art Department, who became famous for her artistry and historical research of early mining camps and ghost towns in the West. She published six books, including Stampede to Timberline. The administration building, named for Milo Ketchum (1872-1934), Dean of Engineering from 1904 to 1919, houses Arts and Sciences offices and classrooms. The broad sidewalk separating Ketchum from Sibell Wolle is still called "Engine Alley."