The Laurier Pass occurrence consists of a phosphatic horizon observed in a measured section, 12 kilometres north of Mount Laurier and 170 kilometres north of the town of MacKenzie (Geological Survey of Canada Paper 70-31).

Phosphate-bearing strata occur in the Middle Triassic Toad Formation over a stratigraphic interval of at least 62 metres. The dominant form of phosphate is black ovoid to spherical nodules that vary in size from 1 to 3 centimetres. Phosphatic cement may also be present. Nodular-bearing beds vary from 1 to 2 metres in thickness. Calcareous concretions occur in the lower part of the phosphatic sequence together with an abundance of phosphatic lenticles.

Host lithologies consist of shale and weakly carbonaceous and/or calcareous, generally quartzose siltstones. Most of these rocks are very weakly phosphatic.