It is north of Lake Cowan and approximately 55 kilometres (34 mi) south of Boulder.

[2] Lake Lefroy is a clay pan covered with a crust of salt that supports little vegetation.

Following inundation, a drying phase is relatively rapid due to high evaporation rates and surface water may only last for a few months.

[5] In January 1897 alluvial gold was discovered at Red Hill, on the northern edge of the lake by the prospector Percy Larkin.

In 2008 Britons Dale Vince and Richard Jenkins spent two weeks on the lake with a land yacht with solid sails like an aircraft wing, to attempt the world wind powered vehicle record, but the attempt was abandoned due to constant delays caused by heavy rain and no wind.