Looking for a great trail in Annadel State Park, California? AllTrails has 21 great hiking trails, trail running trails, mountain biking trails and more, with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers, and nature lovers like you. Ready for some activity? There are 18 moderate trails in Annadel State Park ranging from 3.4 to 12.7 miles and from 288 to 1,558 feet above sea level. Start checking them out and you'll be out on the trail in no time!

hiking

views

no dogs

nature trips

bird watching

trail running

walking

mountain biking

forest

wild flowers

wildlife

lake

kid friendly

Annadel State Park, located 60 miles north of San Francisco on the eastern edge of Santa Rosa, offers miles of trails for hiking, mountain biking, and trail riding. For wildflower lovers, Annadel Park offers a great variety of flowers from early Spring until early Summer, especially on a hike around Lake Ilsanjo. The best months to see the park's wildflowers are April and May, but there are some plants in bloom as early as January and as late as September. Dogs are not allowed on trails. Dogs are allowed on a leash under your control only on Channel Drive (a paved road) within the park. Lake Ilsanjo offers excellent fishing for black bass and bluegill. Black bass weighing nine pounds and more have been caught here. A purple plastic worm is a favored bait for the bass, while the bluegill favor garden worms, small crayfish, and grubs. If you are 16 years of age or older, you must have a California fishing license. Ledson Marsh dries up by late August or early September and so no fish are found there.

hiking
9 days ago

Great until you reach pavement.

trail running
rocky
9 days ago

Two Quarry trail ranges from shaded to shady but has enough sun exposure that on a 70-degree morning, trail running gets hot! The steady (but usually not steep) incline makes for a good workout. Majority of the trail is rocky. I can envision doing this as a easy-ish hike. Heads up: If you click on the directions button from AllTrails and use Google Maps, it'll drop you at an incorrect location in the Oakview subdivision, so I'd use the Annadel State Park map to locate the start of the path for the Warren Richardson trailhead (bonus: services!) and plug that into your map app. Follow the Warren Richardson trail clockwise to the Two Quarry trail. (The Google Maps pinned location forces you westward to a connector path between the water reclamation district and the community garden; does not have services like water or restrooms; and adds about a half mile+ to the route. Oh, and it's *technically* private property; the active adults who live in the subdivision will wonder why you're there. Fun!) This parks' signage can be lacking, and the posted maps don't have "Your Are Here" stickers (look for the "i" with longitude/latiude to find where you are). It's helpful to orient yourself with a map to make sure you're going in the right direction toward Two Quarry trail. Any confusion or even taking a wrong turn is worth it though—a very pretty park.

hiking
27 days ago

My Alltrails app clocked this as 7.6 miles, without our going as far around the marsh as this track shows, so note that it is a longer trail. This time of year it can be hot, but we picked a cooler day. Lots of shade after the first half mile, but when you get to the top and head down towards the marsh, it is very exposed and hot. And much harder to walk on at the top, lots of broken rock. We should have turned back once we got to the top. Lots of mountain bike activity, but it wasn't a hindrance. A good selection of late season wildflowers, worth the trip

nice but a bit underwhelming. looks like a nice bike ride or trail run but not very great hike.

Trails are dry. Meadow trail has many thistles!

hiking
1 month ago

Rain on Memorial Day??? Trail is great shape. 10 miles great for our group of 11 people. Too much for the 10 year old.

many different little ecosystems. Oak Woodland down-low, Lake and Meadowland,conifer Forest up higher. goes through the burn area. Bong moderate climbs in a few steep ones. I did the route in reverse, and I think I would prefer it that way. although there is more downhill then uphill in reverse

trail running
no shade
rocky
2 months ago

Decent run, all the elevation gain is in the first two miles. We ran it mid morning and had moderate shade on the climb however on the way down and then back you're exposed almost the whole time. Lastly, the downslope is on the trail Rough Go. Loads of rocks to trip over, if you're not super coordinated you might wanna walk it to avoid a serious fall. Not my favorite run in the area, but it's a decent workout without having to empty the tank.

Beautiful trail that covers a large sweep of Anadel with incredible meadow views and a nice loop around the lake. Free parking on the street near the trail head. The trail head isn't difficult to find if you use the map, but you do have to briefly walk through an area marked private property (Oakdale community) - cross a bridge and then you'll find the road that connects to the trail. I went on a weekday early afternoon and there were a good amount of bikers so imagine it could be heavily trafficked by mountain bikes on the weekends.

mountain biking
2 months ago

The first half of this trail is challenging if you do it by bike. A lot of Boulders and rock beds. We did it in Hardtails and we wished for full suspension. I walk my bike a lot during the first half (we did counterclockwise).

hiking
off trail
2 months ago

Explored several smaller trails on the east side of Annadel. A bit over grown, poison oak, and weeds. Quiet...not a soul for 2 hrs.

So beautiful- the walk along spring creek with the large moss-covered trees is not to be missed!

If you're running it I would highly suggest starting on the spring creek trail. My partner and I started on the Canyon Trail and were fine, but the decent down spring creek resulted in one heck of a nasty fall.

Rocky dirt trail with great views. Wildflowers, deer, and turkey's everywhere. Most of the trail is exposed, so make sure your water game is tight.

hiking
3 months ago

I really liked this trail! It was very beautiful, well maintained and on the way back down I was able to get a good run in.

Easy enough to carry the baby in a carrier. Nice scenery and fairly accurate distance.

Beautiful with lots of wildflowers. The amount of green is stunning. The perfect Spring hike.

Trail is well maintained. More shade than sun. Went at 11am, not many people. Saw about 20 mountain bikers in total and just a few hikers. Certainly areas of fire damage but also signs of regrowth and recovery. Was lovely and tranquil. Took about 2.5 hrs at a relatively relaxed pace.

Wide rocky road. Easy grade. Beautiful amble thru oaks and fields. Wild turkeys. No dogs allowed. Lots of bicycles. Signs of horses.

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