Tolt River Watershed Construction Records, 2614-13, Box: 1; Box: 2; Box: 3; Box: 4. Seattle Municipal Archives.
Tolt River Watershed Construction Records, 2614-13, Box: 1; Box: 2; Box: 3; Box: 4. Seattle Municipal Archives. https://leglas100/finding-aids/repositories/2/resources/470 Accessed June 26, 2026.