Miller and Ralph 



Chapter 20 



Inland Habitat Relationships in California 



V 



Oregon border 



f* 



cs 



County 

 Locations 



Stale and National Parks within 



Redwood National Park boundaries 

 (Del Norte and Humboldt Counties) 



Humboldt Redwoods State Park 

 (Humboldt County) 



Big Basin Redwoods State Park 

 (San Maleo County) 



Figure 1 Location of state and national parks surveyed during the summer of 1993. Shaded areas represent 

 distribution of old-growth forests within the parks. 



(CIS) database (ARC/INFO 6.1.1) and grouped by distances 

 from the ocean by 10-km bands from to 60 km (fig. 3). 



Definition and Selection of Isolated Study Stands 



Isolated stands were located by examining habitat maps 

 of private lands, state and federal parks, and national forests. 

 The maps were drawn from interpretation of aerial photographs. 

 For the stand selection process, stand size was estimated from 



measurements on the maps. Stands were randomly selected 

 from size categories of 2 to 20 ha, 21 to 40 ha, 41 to 100 ha, 

 and greater than 100 ha. If the stand was accessible, it was 

 visited and visually inspected. If the stand was old-growth or 

 residual forest, the stand was surveyed, if not, then another 

 stand was selected. Upon completion of field work, station 

 locations and stand perimeters were adjusted on maps according 

 to ground-truthing, then digitized into a CIS database. 



206 



USDA Forest Service, Gen. Tech. Rep. PSW-152. 1995. 



