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With help from our supporters, Friends of Trione-Annadel is making significant strides!

Friends of Trione-Annadel, incorporated in 2017, is a 501c3 nonprofit dedicated to funding development and maintenance projects which enhance the value and accessibility of Trione-Annadel State Park. Why? Because we love this park! All of our board members are cyclists, runners, hikers, and nature lovers who volunteer their time to protect a community resource they use, appreciate and respect. Every project we engage in is planned and implemented in collaboration with Friends of Trione-Annadel's all-volunteer board of directors and the approval of California State Parks.


  • Installation of pedestrian traffic signs on Channel Drive: 2 signs guiding pedestrians to avoid bicycle or car collisions
  • Purchased two new state park monument signs made of redwood engraved with a stone base. Located at the entrance to Rough-Go trail from Spring Lake and at the entrance from Lawndale Rd. This additional signage, to be installed in 2021, will help increase public awareness of entering TASP land. This project was initiated in 2018, and completion has been delayed due to COVID and emergency needs related to the recent wildfires. We greatly appreciate the patience of those who have donated to this project. We will get it done!


  • Upgraded and expanded all lighting in the Visitors Center to energy efficient LED fixtures.


  • Purchased 2 chainsaw backpacks, 1 grip hoist, 4 tree ladders, 4 Puller Bear tree/bush removers for the eradication of non-native plant species for use by volunteers and park maintenance staff.
  • Purchased a Kabota U17 excavator and flat-bed trailer for trail and road maintenance.
  • Provided a grant to Sonoma County Trails Council to be used for volunteer trail maintenance days in TASP.
  • Funded the rebuilding of the bridge at Spring Creek and Canyon trails.
  • Through a grant from the Empire Runners organization, purchased tools for park maintenance.
  • Purchased a waterproof chest to hold and protect supplies.
  • Purchased 2 new picnic tables (Schultz Trail and Lake Ilsanjo).


  • Purchased new uniforms for Park Volunteers. This includes vests, polo shirts, badges, hats, etc.
  • Funded the Volunteer Recognition dinner!


  • Funded a study to determine if Spotted Owls are present and living in Trione-Annadel State Park. The presence of Spotted Owls would affect the ability to use heavy equipment in the park for trail maintenance during the Spring and Summer.
  • Funded project submissions for 20 road and trail maintenance projects throughout the park. This included the hire of a Roads Engineer and Hydrologist to complete the development of several road and trail project improvement plans which are now being reviewed by the state parks management. Once approved, we can move ahead quickly with repairs and improvements.
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