The collection consists of cartographic and architectural material relating to the Cowichan Lake and Cowichan Valley areas including geological and topographic maps, forestry, logging and timber claim maps, timber licence plans, road maps, recreation maps, townsite and subdivision plans, and fire insurance plans for mills on Cowichan Lake. Maps and plans are of Lake Cowichan, Honeymoon Bay, Gordon river, Meade Creek, Riverside, and the Port Renfrew area. Collection includes forestry maps and plans for mills of Western Forest Industries at Honeymoon Bay.

The collection consists of recordings of interviews with pioneers of Lake Cowichan and the Cowichan Lake and western Cowichan Valley areas.

The fonds consists of documents relating to the property owned by W.E. Oliver. The fonds consists of 2 series that include letters, memorandums, lists of real estate and reports.