British Columbia covers about 94.8 million hectares, while the forested land base covers about 57.2 million hectares.
Based on the government’s working definition, old-growth forests comprise about 23% of forested areas, or about 13.2 million hectares.

Mature forests — largely natural and generally greater than 140 years old on the Coast and greater than 80 years old in the Interior (but younger than old growth forests) — comprise 26.1 million hectares, or about 46% of the forested area.

Map of old growth and other forests in B.C. Click to enlarge.