The Albers equal-area conic projection, or Albers projection (named after Heinrich C. Albers), is a conic, equal area map projection that uses two standard parallels. Although scale and shape are not preserved, distortion is minimal between the standard parallels.
The Albers projection is the standard projection for British Columbia.[1] It is also used by the United States Geological Survey and the United States Census Bureau.[2]
Snyder[3] (Section 14) describes generating formulæ for the projection, as well as the projection's characteristics. Formulæ also appear at Mathworld's page on the Albers projection.