Browse Items (13652 total)

Ponderosa pine at 54 years. thinned at age 43 years to 50sq.ft/acre. Taylor Woods. United States Forest Service Flagstaff.

Ponderosa pine at Weyerhaeuser's Antelope tree farm in SE. Oregon N.B. pine regeneration in openings following past harvesting.

Ponderosa pine at Weyerhauser's Antelope tree farm in SE. Oregon. N.B. pine regeneration in openings following past harvesting.

Ponderosa pine in greenhouse at Jefferson nursery. Ponderosa pine, 1+0, container. Weyerhauser.

Ponderosa pine in open area, logged and with bark beetle damage. N.B. no regeneration. Near Princeton.

Ponderosa pine thinned from 20 sq.ft./Acre to 0. Fort valley Ext StaFlagstaff Arizona

Ponderosa pine thinned to 40 sq.ft/acre. Coconino national Forest. Flagstaff Arizona

Ponderosa pine thinned to 40 sq.ft/acre. Coconino National Forest. Flagstaff Arizona

Ponderosa pine with dense groundcover of Manzanita and Arctostaphylus parryana. SE Oregon.

Ponderosa pine planted 1963, photo 1964 (30% survival). Photo M (Mike) D. Meagher