Northern California Shared Service Area



Providing forest health technical assistance, training sessions and technology transfer to:

  • Six Rivers, Klamath, Shasta Trinity and Mendocino National Forests
  • Redwood National Park
  • State Forests and Parks
  • Private forested land
  • BIA/Tribal Forests

Unique Features

  • All Federal forested land in the SSA is tiered to the Northwest Forest Plan
  • The SSA covers the wettest corner of California (see  Precipitation Map)
  • Most management actions require concurrence from USF&WS and/or NMFS due to listed TES species
  • Diseases are relatively important, while density dependent bark beetle mortality has less impact
  • Only SSA with Port-Orford-cedar and Port-Orford-cedar root disease (POC)
  • Parts of two National Forests in the SSA (Mendocino and Six Rivers) are in counties under quarantine regulation for Phytophthora ramorum, the pathogen causing Sudden Oak Death (SOD).  While P. ramorum has not been detected on federal lands within the SSA the area is at high risk for the disease.
  • The earliest entry of white pine blister rust into the state (1930’s) was in the SSA
  • The SSA includes the entire population of the northern subspecies of foxtail pine, which is susceptible to white pine blister rust

Recent Publications

Managing for Healthy Port-Orford-Cedar in the Pacific Southwest Region (PDF 372 KB)

2011 Evaluations

2010 Evaluations

2009 Evaluations


More Northern California Biological Evaluations


Contact Information:

Northern California Shared Service Area
Shasta-Trinity National Forest
3644 Avtech Parkway
Redding, CA 96002
(530) 226-2436
(530) 226-2437