An empirical habitat model has been estimated for moose, Alces alces, in Algonquin Provincial Park in the southern Great Lakes-St. Lawrence forest region of Ontario using annual moose population data and habitat characteristics which have been extracted from the forest resource inventory for the park. Linear and logarithmic specifications of the model were estimated within the family of functional forms allowed by the Box-Cox specification. The linear specification provided a satisfactory relationship between habitat characteristics and moose density. Habitat characteristics explained 73% of the variance in moose density in the park. Moose are attracted to stands which are 1-20 years old and to stands with less than 30% stocking, and also to conifer stands older than 20 years with less than 50% canopy closure while avoiding the more open areas which would offer little thermal protection or relief from deep snow. The moose population surveys were conducted during the months of January and February, and the model may be detecting mid-winter habitat selection by moose in home ranges which are sufficiently large as to satisfy year-round cover and forage requirements. The estimated model was tested by comparing predicted and observed moose density using habitat and moose population data from another time period. The model provided reasonable 10-year forecasts of moose population-habitat relationships for Algonquin Park.