Southwest of Old Pinn Trail, 1/4 mile from Chalone Maintenance Area. Upslope to south of main drainage running into Pig Canyon. West of ridge dotted with Ceanothus and pines. Large stand of Prunus covers much of the low-lying mid hillside. Plot is dense with large shrubs, mainly Prunus (<3 m), but understory allows for some walking and crawling. Red-tailed hawk circling on our way to the stand.