The Spray River Group is a stratigraphic unit of Triassic age.
It was originally described as the Spray River Formation by E.M. Kindle in 1924[2] and was later raised to group status.
[3] Its type section is located in the Spray River gorge at the southern end of Sulphur Mountain.
[3] The Spray River Group includes marine fossils[4] from the Triassic period.
[5] The Spray River Group was deposited on the continental shelf along the western margin of the North American craton.