Wood Sort Yard

In response to the large volume of wood requiring disposal, the County has opened a wood sort yard that will allow logs of all sizes to be dropped off, free of charge. The wood sort yard is in close proximity to Pacific Ultrapower, which gives them the ability to chip wood on-site to be used as fuel for power production. This is an environmentally conscious and cost effective solution for wood disposal. Additionally, some wood may be sent to American Wood Fibers and Sierra Pacific Industries, depending on condition and marketability. The County is not providing payment for wood dropped off at the sort yard.


The wood sort yard is located off highway 120 and Enterprise Drive. Signage to the wood yard will be on Enterprise Drive. Hours of operation are: Monday-Friday, 7 a.m. to 5 p.m.

  • From Sonora: Take highway 108 to the highway 120 exit at Yosemite Junction.
  •  Continue on highway 120 for approximately 1.67 miles. Turn right on Enterprise Drive. The wood sort yard is on the right hand side, just before the gate to Ultrapower. 
  • From Groveland: Take highway 120 approximately 13 miles and turn left on Enterprise Drive. The wood sort yard is on the right hand side, just before the gate to Ultrapower. 
Please note: NO dumping or wood cutting will be allowed. The wood yard will accept logs of any size and length, but will not take slash, pine needles, stumps, or debris. 


  • Cal Sierra Earth Resource Facility located at 14909 Camage Road. Sonora (209) 533-0445 or (209) 532-1413
  • Plainview Slash Site located at                     Highway 108 & Plainview Drive Twain Harte (209) 743-3317
  • Green Works located at                                     18629 Eagle Ridge Sonora (209) 229-4562


The County of Tuolumne is home to two biomass plants which burn wood to create energy. One is owned and operated by Sierra Pacific Industries off Camage Road, and the other is Pacific Ultrapower in Chinese Camp, which sells the energy created to Southern California Edison via a contractual agreement. The following resources can be accessed to gain further information on biomass and its role in the tree mortality emergency