The collection includes digital photos of the town of Opasatika and the facilities at the Nassau Lake from 1950 to 1970. Much of the digital photos show activities related to forestry work and to the development of the two villages. Others depict family members and outdoor activities. Some pictures date from the later decades.

The fonds contains records of the businesses founded by Ernest Gosselin in northern Ontario. Most of the documents relate to the various properties that belonged to him in the Geraldton area.

The collection includes hundreds of slides relating to lumber work and to the hunting, fishing and trapping activities practiced by the Clamouse de la Touche family. Beautiful pictures of Northern Ontario landscapes are also part of the collection. Some of the slides can be found in Jacqueline de la Touche’s posthumously published book entitled Pris sur le vif. A few textual records are also part of the fonds.