, 0 Capilano Sediments, 1 Fort Langley Forma, 2 Fraser River Sedim, 3 Mix, 4 Pre-tertiary bedro, 5 Quadra Sand, 6 Quadra Sand/Semiah, 7 Quadra Snd/Coqtlm, 8 Salish Sediments, 9 Semiahmoo Drift, 10 Sumas Drift, 11 Tertiary bedrock, 12 Undivided Pre-Vash, 13 Vachon Drift, 14 Vashon Drift, 15