The Lodge was originally built in the late 1940s as a wilderness corporate resort by a large American trucking company. The Lodge has a fascinating history that carries on to this day. Maury and Annabelle East bought the Lodge in 1962 and opened for the public the year the road was built into Killarney.

The history of the lodge and its guests is quite colourful and includes several high profile Americans who flew to Killarney Mountain Lodge for fishing trips and fun times in the 1950s. Since then, Maury and Annabelle and their family have welcomed visitors for almost forty years. Their wilderness hideaway still reflects the rustic luxury of Ontario's golden age. Their family and staff bring the Killarney experience to life with great food, friendly service and the best of northern hospitality.