Exploration no. 43974 is a Geotechnical (depth 176 feet) named: K-19 described in subsurface document no. 7793. The document, a report titled L-4016, Proposed 72 Utilities Tunnel was prepared by WA State Dept. of Highways on 04-28-1972 for a Utility project.|Paper Reports|https://fortress.wa.gov/dnr/geologydata/subsurface_pdfs/7700-7799/007793.pdf|-122.334871957,47.540841133|19720401|The coordinates are represented in World Geodetic System 1984 (WGS84). Spatial accuracy of exploration is: Greater than 100 feet|1972|https://geologyportal.dnr.wa.gov/#subsurface|https://fortress.wa.gov/dnr/geologydata/subsurface_pngs/43974.png|f,176,0