Over the past three years crystalline magnesite has been found in the Mount Fitton area in many places, in a 12 miles long belt which follows the lower edge of a dolomite mass of Late Proterozoic age. The Mount Livingston deposit with indicated reserves of 1.5 million tons is situated on a steep slope high above the valley, and could be worked with ease. Bulk samples taken from its surface contain an average of more than 93% MgCO3; lime is almost absent, but the silica, alumina and iron contents are fairly high. The next largest deposit, located one mile east of the Mount Fitton talc mining camp, and others in the general area, are much smaller and more irregular than the Mount Livingston deposit, their ore interfingering with country rock, but they seem to carry less silica and alumina. The region's combined total inferred reserves could be of the order of 5 to 10 million tons. The magnesite was probably formed by replacement of dolomite in the course of magmatic activity in nearby areas.