A marl deposit occurs in Allison Lake (Burns Lake), 25 kilometres north-northwest of Princeton.
The Allison Lake deposit underlies a 180 by 70 metre area, at the south end of the lake, with thicknesses of up to 3 metres. Indicated ore reserves are 16,300 tonnes of marl, contained in an 8391 square metre area, with an average thickness of 1.5 metres (Industrial Mineral File - J.W. McCammon, 1950).
A sample of the marl analysed 51.4 per cent CaO, 1.0 per cent MgO, 3.3 per cent insolubles, 1.0 per cent R2O3 and 0.3 per cent Fe2O3 (J.W. McCammon, 1950).
Marl was excavated along the southern shores of Allison Lake by B.C. Marl Company Ltd. for agricultural markets in the Fraser Valley between 1945 and 1948. No production figures are available.