Whinnimic Falls is a waterfall in the headwaters of Lemah Creek in the Alpine Lakes Wilderness Area. It is set in a narrow valley below Lemah Mountain. The falls are one of two in the valley, the other being the smaller Upper Lemah Valley Falls. Whinnimic Falls plunges about 350 feet (110 m) off a vertical cliff, onto a valley floor dotted with ponds and grassy meadows.