Explore the most popular mountain biking trails in Santiago Oaks Regional Park with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

You have to pay to get into this one. Not a big deal as it's giving back a little and only $5, but it does somewhat take you out of the experience. There was a fair bit of trash lying around and no shade throughout 90% of the hike. First half uphill, second half downhill along an easy dirt path. So many different trails that it can be hard to navigate this one, but they all pretty much intertwine with each other, so you should be fun. A fun way to kill a couple of hours, but not my favorite. Head over to Black Star or Orange Hills for a little more variety (and no parking fee) :).

hiking
3 months ago

Very calm, not packed in the morning, parking is easy to find if you go early. The scenery is amazing .

hiking
3 months ago

part of the trail on the west side is still closed due to the fires. You can navigate around this area and complete the trail, but it's a bit tricky finding a "through route".

mountain biking
4 months ago

Really fun with great views !
Nice trails for moderate - advanced people
For sure going back

I’d say it’s longer than the length advertised, parts of the trail are still closed but we were able to follow most of it. It’s a nice hike!

Easy trail, but pretty with all the flowers bloomed. Not too crowded if you go early but it looked like it was about to be as soon as we finished. My dog also seemed to enjoy it.

hiking
5 months ago

Mustards and flowers are returning in some areas. The hill west of the Old Weir Canyon Trail was solid mustard plants before the fire but still has a long way to go. Snakes and rodents are starting to return too. This has been one of my favorite trails for decades and still is.

Wildflowers and mice are returning well after the Canyon Fire. Saw two rattlers today, including a juvenile lying in the middle of the Anaheim Hills trail with a fresh mouse kill.

hiking
6 months ago

Hiked with dog on 3/31/18. The effects of last October’s wildfire were devastating on the park and its many oak trees and other vegetation. But there is also much new greenery and growth. Saw many wild California poppies, maybe more than last year.

great views and birdwatching (woodpecker, hawk, multiple smaller birds). many signs of regrowth after the fires with saplings and wild flowers popping up.

hiking
7 months ago

great trail to frequent.
street parking.
some parts are burned and rebounding.
starting to green out for spring already as well in some parts.

This place is so beautiful. We came to so a short hike on 3/2/18 and it was awesome. Me and my dog were the only ones on the trail.

Definitely need to go back soon.

I will definitely return to this one since it is not too far from where I live and there are so many trails I didn't do on Sunday. There are many interlinking trails and we did the shorter trails that were closer to the creek since there were people in our group who don't do much hiking and wanted to take it easy on them. We did about 4 miles and there wasn't much incline. I will do some of the harder, longer trails next time.

Parking- we paid $5 since it was Sunday (weekdays are $3); there was a friendly worker at the gate who provides us with a map;
Trails- wide multi-use trails that are great for sharing with mountain bikes (there were many) and there was lots of clues on the trail that horses use these trails too but we didn't see anyone on horseback; i preferred the trails closer to the entrance where the round, concrete steps to cross the creek are.

hiking
7 months ago

We have gone here twice and it has been ok. We are in no rush to return. We have had no trouble finding parking on Hidden Canyon & E. Overlook Terrace. Both times we have taken the trail that heads to the NE and RT is about 3.7 miles. As you enter the trail head there are options to go south and we will need to check that out next time. There aren't amazing views or a cool destination to see at the end of this trail. The trail loops around and it is pretty close to homes at part. It is a decent option since it is not very far away. On one of our visits we came across a snake and a large tarantula just chilling on the trail.

hiking
7 months ago

I loved here! My son and my dog were leading the way. It’s peaceful and quiet and we got to see amazing views and clouds...

Good trail with lots of hill climbing. You are rewarded with some good views.

hiking
8 months ago

Nice views! Recovering from the fires a few months ago. Not as many people for a Sunday morning.

I enjoy everything about this hike

awesome hike. some.areas still.closed due to the fires but definitely recommended!

hiking
9 months ago

The OC Parks web site says this trail is now open. A few signs 2 miles in (northeastern most portion) say it is still closed, but that may be for people entering from that remote location and those signs simply have not yet been removed.

The trail is very stark and surreal after having been burned in the Canyon Fires. Only cactus and the largest trees and bushes survived, and the only wildlife are birds. Hopefully nature does its job and rejuvenates the wildflowers this spring. The rain from 2 weeks ago finally helped new grass sprouts everywhere, a uniform 2 to 3 inches. Weekly visits may be fun for my son to watch nature rebound and return.

had many trails to choose from. wish we would have come earlier to explore more.

hiking
9 months ago

According to the revised map from OC Parks. The Weir Canyon loop is open. http://www.ocparks.com/civicax/filebank/blobdload.aspx?BlobID=70709

Unfortunately all the trails are close due to the fires that came through the area

I can't really rate it, since it's closed due to the fires.

hiking
Sunday, October 01, 2017

I went with two friends and we loved how we felt so far away from everything and everyone. It was absolutely peaceful and beautiful. We saw three deers playing and running around.
The hills made the walk more of a hike which I enjoyed!

hiking
Saturday, September 23, 2017

Nice trail. Moderate climb on a fire road up to Robbers Peak. Single track most of the way back. It is popular with bikers so use caution on the way down

trail running
Tuesday, August 29, 2017

This trail is amazing. You can do an easy one mile loop or you can connect Weir and Santiago trails to do 10+ mile strenuous runs.
The 4ish Mile Weir loop gives you everything you could ask for in terms of terrain with constantly changing scenery ( huge plus ). This is a moderate trail run for a newer runner where technique can really be worked on. If your looking for an added challenge and/or additional mileage add on the loop to Robbers Roost.

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