Pinus sabiniana
- Photograph, description, range, and uses of Digger Pine.
- http://www.conifers.org/pi/pin/sabiniana.htm

Digger Pine
- Photograph of P. sabiniana on University of Washington campus, close-up of needles and cone. Description of the trees and information about the origin of both common and scientific names.
- http://www.washington.edu/home/treetour/dpine.html

Gray Pine - Pinaceae Pinus sabiniana
- Description, detailed photographs of needles, pine cone and bark.
- http://www.fw.vt.edu/dendro/dendrology/syllabus/Psabiniana.htm