Trione Annadel State Park

Trione Annadel State Park Discover the stunning rolling meadows, peaceful Lake Ilsanjo, and diverse wildlife.

Official account for Trione-Annadel State Park.
6201 Channel Drive, Santa Rosa, CA
The park offers 40+ miles of scenic trails for hiking, biking, and horseback riding.

05/26/2026

Behold! The first release in our Out & Back Series of beers! 🎉

Annadel Trail Ale 🌲
5% / 20 IBUs
Hops: 100% Citra

We spend a lot of time enjoying local parks and trails and our entire brand is heavily influenced by the beauty of Sonoma County.

This love of the outdoors inspired us to craft a new series of low ABV beers to give back to the landscape that gives so much on a daily basis.

5% of Out & Back sales will be donated to associated organizations within each region and for the inaugural Annadel Trail Ale, we are partnering with the awesome folks at .

Highly sessionable, thoughtfully hopped, and for the first time ever — 12oz 6-packs!

As we explore future beers and regions of the county, let us know if there are any parks or organizations you would like us to highlight!

Annadel Trail Ale is available in cans and on draft today at our SOMO Pub, and we will be hosting a slew of groups including , , , and a fundraiser for .

Cheers! 🍻

Can you sssss-spot the rattlesnake in this image? 🐍This photo is a perfect example of cryptic coloration. This snake’s d...
05/08/2026

Can you sssss-spot the rattlesnake in this image? 🐍

This photo is a perfect example of cryptic coloration. This snake’s dark scale pattern breaks up its outline, allowing it to "blend in" with the leaf litter and shadows of the forest floor.

It’s that time of year! Our slithery friends are leaving their dens to find food and sunny spots on the trail to warm up after a long winter. ☀

🐍Rattlesnakes aren't aggressive by nature and would much rather slip away unnoticed, but they are highly defensive and will protect themselves if they feel startled or cornered.

Here are a few ways you can be "Snake Safe" while out on the trails:
🥶Freeze & Retreat: Don't panic. Stop moving, locate the snake, and back away slowly.

📏The 6-Foot Rule: Keep at least two arm-lengths of space between you and the snake.

🖐️Hands Off: Never poke, move, or harass them. Most bites happen when people get too close or try to move the snake.

🤝Share the Trail: If it's blocking the path, wait. Give it a clear exit, and it will usually move on its own.

🐶Keep Pets & Kids Close: Keep kids and pets on the trail and right by your side.

🥾Watch Your Step: Stick to clear paths. "Look before you leap" over logs or rocks.

🚑 If a Bite Happens:
Call 911 immediately. Stay calm and stay put; let rescuers come to you.

-Keep it still: Keep the bite area immobilized and below heart level.

-DO NOT use ice, "venom kits," or attempt to cut the wound.

-Identify your spot: Know your trail name or GPS coordinates to help first responders find you fast.



Photo Credit:

Image Descriptions:
1. A rattlesnake camouflaged against a forest floor background.
2. A beige circle around the camouflaged rattlesnake points it out to viewers.
3. An image of a state park's snake alert sign overlayed on the original camouflaged snake image.

Friends of Trione-Annadel State Park and Old Caz Beer have teamed up for the release of the "one of a kind" Trail Ale, c...
05/08/2026

Friends of Trione-Annadel State Park and Old Caz Beer have teamed up for the release of the "one of a kind" Trail Ale, coming to Sonoma County this Memorial Day weekend! 🍺🥾⛰️🌲

💚 5% of the proceeds from sales will go to Friends of Trione-Annadel State Park, our awesome park partners, who support everything from new bike repair stations to trail maintenance, and educational programs for local K-12 students.

Make sure to check out the post below for more information about the event, which will feature great food, music, awesome raffle prizes, a community fun run and so much more! 🏃🏆

Heads Up Trione-Annadel Friends! 🚒A series of pile burns is planned for Tuesday, May 5th, through Thursday, May 7th, or ...
05/04/2026

Heads Up Trione-Annadel Friends!

🚒A series of pile burns is planned for Tuesday, May 5th, through Thursday, May 7th, or as conditions permit.

Here are the details you need to know if you're planning to visit the park next week:

📆When: Beginning Tuesday, May 5th, through Thursday, May 7th, 2026, as conditions permit.

🗺Where: Along roads and trails adjacent to Lake Ilsanjo. Including Canyon, Lake, and Rough Go Trails.

🚩No Planned Closures - No closures are expected of roads or trails. However, visitors can expect to smell and see smoke on burn days.

❓What: Pile burns help State Parks manage invasive plants and dead wood that have accumulated in the absence of historically frequent, low intensity fires.

👤Who: California State Parks and CAL FIRE Personnel

‼️Do not Report - Local residents and those traveling along nearby roads may see smoke from 9:00 am to 6:00 pm on burn days. Please do not call 9-1-1 to report smoke from the burn area.

🔥Burn updates will be posted to Watch Duty--please check the app/website for more information on the day of.



Image Descriptions:
1. A smoke advisory with pertinent burn information overlayed on a picture of a series of piles that have been lit on fire.
2. Second image described burn locations, involved fire agencies and personnel, and asks local residents not to report the burn to 9-1-1.

Just in time for Earth Day, our new bike repair station is here to keep you rollin' and explorin'! 🌎💙 🚲Thanks to our ama...
04/23/2026

Just in time for Earth Day, our new bike repair station is here to keep you rollin' and explorin'! 🌎💙 🚲

Thanks to our amazing park partners , the Visitor Center now features a free bike repair station—perfect for a quick tire top-off, bolt check, or tune-up before heading out on the trails.

And this is just the beginning: three more stations are on the way, with the next one coming to Lake Ilsanjo. 🥳



Image Descriptions:
1. A trail kiosk and the new bike repair station are featured in the foreground, and an oak forest makes up the background of the image.

2. A close-up image of the bike station features an air pump, a bike stand, and various tools to fix a bicycle.

Starting Monday, April 13th, 2026, State Parks staff and contractors will be working to repair and improve sections of t...
04/10/2026

Starting Monday, April 13th, 2026, State Parks staff and contractors will be working to repair and improve sections of the Canyon Trail/Fire Road heading towards Spring Lake.

🚒Road and trail maintenance work like this supports access for emergency and fire response and supports the long-term operational goals for the park.

🚜 Heavy equipment and crews will be present from Monday to Thursday, 7 AM–5 PM, during the following month or until the work is complete.

⚠️During this time, expect temporary delays on the trail, and proceed with caution while recreating near the worksite. Please follow the directions of all posted signage.

📍State Parks may implement full trail closures at certain points during the project to ensure the safety of visitors.

➡️ Scroll right to see the planned work areas.

You can check the park’s website or social media for updates about potential trail closures in the project area.



Image Description(s):

1. Trail work notices graphic over a dirt road scene with oak trees, announcing delays on Canyon Trail from WR Junction to Spring Lake starting April 14, Monday through Thursday, 7:00 AM to 5:00 PM, with a ‘Road Work Ahead’ sign.

2. Map showing Canyon Road maintenance area near Lake Ilsanjo, with a red line marking the work zone and surrounding trails in Trione-Annadel State Park.

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04/10/2026

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🌷Spring is here, and so are the wildflowers! 🌷Hillsides are waking up with color, pollinators are buzzing, and every tra...
03/27/2026

🌷Spring is here, and so are the wildflowers! 🌷

Hillsides are waking up with color, pollinators are buzzing, and every trail has something new to discover.

Slow down, look closely, and let the season surprise you... like these Scarlet Fritillary flowers! 😍

As always, don't doom the bloom! Please leave the flowers for our forest friends and fellow humans to enjoy. 🐝



Image Description: A trio of pink flowers (Scarlet Fritillary) grows in the forest.

You won’t want to miss this awesome event out on by our wonderful park partners, Friends of Trione-Annadel State Park. 🎉...
03/20/2026

You won’t want to miss this awesome event out on by our wonderful park partners, Friends of Trione-Annadel State Park. 🎉

Check out the details below 👇

03/12/2026

The next trail workday at Trione Annadel State Park is quickly approaching! Join Redwood Trails Alliance and the Annadel Composite Mountain Bike Team (A-Team) on Sunday, March 15, 9 AM-1 PM at the Cobblestone Trailhead on Channel Drive.

RTA will provide tools, protective gear, and lunch. Wear a long sleeve shirt and pants (poison oak is prevalent), and bring a hat for the sun (or jacket for rain), work gloves, sturdy shoes or boots and water that you can have with you while working.

Registration is required: https://trailsalliance.org/events/

Address

6201 Channel Drive
Santa Rosa, CA
95409

Telephone

+17075393911

Website

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