Yosemite 3 was an unarmed United Earth research station that was in service in the mid-22nd century. The space station orbited Earth and was usually manned with thirty to forty civilians.
It was destroyed, presumably with all hands, during an attack by Dolim's Xindi-Reptilian warship at the end of the Xindi incident on February 14, 2154. (ENT: "Zero Hour")
For more information on the studio model, see VOY studio models.
See also: Objects in Earth orbit.