Lake Mason is situated southwest of Loch Katrine in the Lake Sumner Conservation park. The lake is split in two independent lakes; a deep lake (39 m Lake Mason) and a much shallower second lake (2 m Little Lake Mason). They drain into each other. Lake Mason’s catchment is dominated by mountain beech forest and tussock grasslands, although it also has grazing land and 4WD access to a significant accommodation hut on the lake shore (www.ecan.govt.nz).
Main image by David G. Schmale III, Virginia Tech, https://www.schmalelab.spes.vt.edu/