2020-07-302022-02-212020-07-302022-02-21https://hdl.handle.net/11124/174825Man operating heavy machinery at construction area of the Cecil H. & Ida Green Graduate and Professional Center with Guggenheim Hall's tower and the "M" in the background.10 x 8 inchesblack-and-white photographsBuildings -- ConstructionMachinery and equipmentHillside letters -- ColoradoColorado School of Mines -- BuildingsStillImage