The projection is Albers Equal Area Conic, with parameters of :

Central meridian: -126.0 (126:00:00 West longitude)
First standard parallel: 50.0 (50:00:00 North latitude)
Second standard parallel: 58.5 (58:30:00 North latitude)
Latitude of projection origin: 45.0 (45:00:00 North latitude)
False northing: 0.0
False easting: 1000000.0 (one million metres)

The datum is NAD83, based on the GRS80 ellipsoid.

EPSG:3005