Quaternary sediments overlie granodiorite of the Cretaceous to Tertiary Coast Plutonic Complex. The hot springs flow at a rate of 457 litres per minute, are 52.0 degrees to 73.5 degrees Celsius, and have a pH of 7.96 to 6.52. The springs have a continuous gas discharge. Chemical analysis of the springs is as follows (in parts per million): 46.6 Ca, 0.5 Mg, 320.1 Na, 15.6 CO3, 457.0 SO4, 215.9 Cl, 3.3 F, 50.6 SiO2 and 1186 total dissolved solids (*Property File, Leach, 1951). A high content of lithium has been reported to be 10.2 parts per million (Geological Survey of Canada Paper 73-18).