The HITCHENER RANCH showing is located approximately 3 kilometres northwest of Westbank in the Glenrosa area.
The showing is described as a swamp deposit of nearly pure diatomite (Geological Survey of Canada Map 539A). It is underlain by and probably associated with the Eocene White Lake Formation, which consists of a thin-bedded clayey siltstone interbedded with volcanic breccia and pyroclastic rocks.