This lake was seen and named on January 4th, 1889, 'Lake Fergus', by W. H. Homer and G. Barber.
On this journey, the explorers found what they called the Homer Saddle on 27 January. Homer suggested that a tunnel through the saddle would provide access to the Milford area.[4] The Eglington Valley Road past Lake Fergus, now known as SH94, was completed in 1935, giving easy access to the lake for the first time. The Homer Tunnel opened to traffic in 1953, giving visitors reason to drive past Lake Fergus.[4]
References
Wikimedia Commons has media related to Lake Fergus.