The stone work accomplished by Chinese railroad laborers in the Santiam Pass was part of the railroad roadbed preparation for the western extension of the Oregon and Eastern Railroad. Chinese workers cut into the west side of Hogg Rock and filled low areas by carefully stacking rock to provide the base for the roadbed. Reference: Dawson 1970: 351.
Dawson, Maynard C. 1970. “Letter to the Editor: “Niagara” and “China Dam”.” Oregon Historical Quarterly, December: 349-357.