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Iron Horse Trail

4.0 (47 reviews)

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Paved trail on the left, dirt trail on the right.
Ron R.

An excellent everyday trail! From Concord down to Alamo, you might just catch me running long distance or walking my dog. Some scenic parts, some trashy parts, regardless it sure serves it's purpose in our everyday active lives. I'm also lucky enough that I can cut over and cruise the Contra Costa Canal Trail to get to Heather Farms. From where I run, there's a few fancy bridges to cross as well, like the Robert I Schroder Bridge. This trail makes many connections to a several parks. I know bike riders just love cruising down it. People love strolling their kids along, or even run with their strollers. There are plenty of trees along the trail, and some streaks with no trees. Overall this isn't the greatest trail in the bay, as it does get broken up by major streets, but serviceable for long stretches. Hikers hike it, but again, I wouldn't call it the most challenging either. I dig it, I run it, I love it!

Start of trail
Lito A.

Normally I go running at Runyon Canyon in the Hollywood hills, but since I'm visiting family here in Northern California I decided to go for a run and this place was ok

The Iron Horse Trail at the Contra Costa County Canal Trail junction, looking north
David H.

Took in the Iron horse Trail round-trip from the Pleasant Hill BART to the end of the line just south of the Dublin BART. That's a 42.6-mile round trip. It's flat and has some very nice scenery. The trail is flat and, heading south, there are really nice tailwinds to make the trip quicker than uncontrolled trip down a slip-and-slide. It's not perfect, though. Heading north, the headwinds are vicious -- the worst headwinds I've ever ridden against. I was giving it everything I had through Dublin and San Ramon and could not crack 8 MPH. My normal, easy speed is 13.5 MPH. I track these things. I'm a nerd. There is almost no tree cover except in Danville. I got the worst sunburn I've ever had on my arms and legs on my trip. Literally, my arms blistered. BLISTERED! Like bubble wrap, only nasty instead of fun. Wear STRONG sunblock. I use SPF 65 (I didn't use it when I rode the trail...) and I strongly suggest using at least SPF 45 and reapplying it a few times. There's no water south of Danville or north of Alamo. The water available is warm and tastes heavily of metal, but it's free and there and on a hot day will be welcome. I went through eight liter bottles of water on my trip (seven on the trip back) and the drinking fountain water was very nice to have. The Walnut Creek section of the trail is the hardest to ride. It goes through Downtown, which is nice, but the trail is poorly maintained and rough (by paved trail standards.) For me, growing up on gravel trails made this a fairly easy ride and the large bumps were fun, like mini roller coasters without the burden of harnesses. The trail has a lot of great qualities, though, especially through Danville. The Danville section passes through downtown and on the Saturday I went there was a farmer's market going on next to the trail. There are also a lot of great restaurants near the trail. For me, an ideal Saturday morning could be riding to Danville, trying a new restaurant, and riding home. The same can be said of the Walnut Creek segment which passes many more dining opportunities than the Danville length. However, Danville has a more scenic segment of trail. The San Ramon length is all business. It goes through some business park and then a golf course. It's not scenic, but it has signs that show you where you are. Nice touch, San Ramon. I dig it. My big advice on this trail is that just because it's a trail does not mean it's a cakewalk bike ride. Take it seriously on hot or sunny days because this is not a forgiving trail despite being flat and straight.

Oddly no one has bothered to post parking lots on the Iron Horse Trail hence the post here.
Erin O.

The Iron Trail through Walnut Creek can be noisy due to traffic closer to the downtown. The trail itself gets much more pleasant closer to Alamo off Rudgear. Parking around the trail can also be difficult but as noted park closer to the Alamo side of the trail and it makes a much more pleasant walk.

Picture of the trail with greenery!
Maria P.

Love this walking, running, biking trail! It's pretty flat so not too strenuous. There are mile markers to help track how far you've gone. Trail maps are available at the entrance by the pleasant hill Bart stop. Early morning runs are my favorite! There's always other people on the trail, but it's never too crowded. It connects to several other parks, which are nice to picnic in (like walden park). Always super green and pretty in the spring, especially since we got rain!

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Ask the Community - Iron Horse Trail

Review Highlights - Iron Horse Trail

The entire trail measures roughly 32 miles one way and stretches from Concord all the way to Pleasanton.

Mentioned in 13 reviews

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Ygnacio Canal Trail - Spotted on the trail

Ygnacio Canal Trail

4.7(3 reviews)
5.0 km

Only two reviews from stellar Elite Yelpers? Must be a well kept secret!…read more Finally got my new bike built and wanted to take a simple Sunday ride. With COVID-19 illnesses rising, I choose an 6:00am start to avoid crowds. Easy parking near John Muir Hospital (thank you, Jennifer N for the tip). Headed south to Alamo for about ten miles. With a new gravel bike, I had the options of riding pavement or hard packed dirt. It wasn't as crowded as the Iron Horse Trail further past Alamo. Just a few runners. Not challenging at all, which is good. It was a relaxing ride with my new toy!

The Ygnacio Canal Trail is one of my favorite walking and running trails in the Walnut Creek area!…read moreLocated in the Ygnacio Valley hills, this trail extends about 7 and a half miles from Citrus Avenue in Walnut Creek to Heather Farms Park. This trail can be accessed from several different residential streets in Walnut Creek and it also intersects the Contra Costa Canal and California Hiking and Riding trails. There are loads of beautiful scenic views and all types of different wildlife present throughout. The trail runs parallel to the Ygnacio canal where you can view the adorable ducks swimming alongside. The trail is easy to moderate, given the rolling hills at the beginning near Citrus ave. The trail passes through a few different parks and golf courses, one of which is the Arbolado Community Park. I sometimes park my car at the park and continue on the trail from Arbolado blvd. I haven't yet been able to finish this trail in one sitting since it is 7 miles long. However, I have traveled along the entire trail to its' end at the beautiful Heather Farms Park. The people on this trail are always super friendly. This trail is shared use, so people walk, run, and ride their bikes. At it's highest point, you will capture the gorgeous views of Walnut Creek and Mount Diablo in the distance. Lime Ridge Open space can also be accessible from the tunnel overpass near Ygnacio Valley Blvd. In the summertime, this trail can be sweltering in areas that aren't shaded. I've seen ducks, squirrels, and even cows roaming around in the hills. If you are looking for a new trail to conquer in the Contra Costa area, add this one to your list!

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Ygnacio Canal Trail - Through the tunnel

Through the tunnel

Ygnacio Canal Trail
Ygnacio Canal Trail - Pretty sunset

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Pretty sunset

Castle Rock State Park

Castle Rock State Park

4.6(429 reviews)
75.8 km

Have long eyed the Castle Rock State Park and glad we finally went! The park charges a nominal…read moreparking fee ($10 at time of writing); the parking fee is waived if you have one of the supported passes. Check their site for more info: https://www.parks.ca.gov/?page_id=538# We really enjoyed our hike here. The space is beautiful, and the trails are well-maintained. The trailhead had plenty restrooms as well. We made it up to Goat Rock Lookout, back down, then detour to the waterfall. It took ~1.5 hours in total, which was perfect for a end-of-day hike before the park closes at sunset. The view up at Goat Rock Lookout was breathtaking!

If you're looking for another place that has breathtaking views surrounding the whole Santa Cruz…read moreMountains (but don't want to go all the way to Portola Valley), Castle Rock State Park is the place for you. This place is usually my go to when the weather is just perfect and you want good views of the mountains viewing the Monterey Bay and the Santa Clara Valley. In addition, the park is even open during the cold winter season, where it occasionally will snow (because of how high the elevation is, the main base is situated at about 3,200 feet above sea level). This place has been my go-to park for hiking for a while, because of its terrain. At the same time, it's also been because of how much snow they get when cold fronts come into effect. They are also open year-round, so definitely swing by this state park when you do get the chance to! It's a decision you'll never regret.

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Castle Rock State Park - Love it

Love it

Castle Rock State Park
Castle Rock State Park

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Coastal View Trail

Coastal View Trail

5.0(1 review)
45.8 km

After you ride the Coastal View trail, you will want to sell your earthly goods and then donate the…read moreproceeds to the GGNRA and then devote yourself to mountain biking full time. Really, join me! We'll make it work! We'll live on thistles and spring water, and we'll dance with the butterflies! Oh, never mind, we need beer money...but do check out this trail...I pretty much guarantee you'll love it. Here's my loop: West Blithedale trailhead, up Old Railroad Grade to West Point Inn, past the Inn to Old Stage Road trail, down to Pantoll campground, (through the parking lots) to Coastal View trail, ride Coastal View all the way to Highway 1. Then turn left, ride carefully on Hwy 1 to the Pelican Inn, and have your friend guard the bikes while you get a pot of tea to drink out on the lawn. Then lug your tired rear up Diaz Ridge trail back to Mill Valley and don't hate on me for getting you to a place that's downhill from where you want to be. Alternate plan: Get your friend's husband, who has a truck, to pick you up. Say yes to hitchhikers 'cause that might be you one day and you think you know them maybe a little. But I guess I should review the trail itself: Coastal View is absolutely magnificent. The word 'magnificent' is not an exaggeration, which I am prone to, but not in this case. Single track (but not the scary next-to-a-cliff-you-might-die type of single track) that progresses from wooded bits near Pantoll, to an exposed path, to a Disney-couldn't-design-a-trail-that-looks-this-good segment that winds through some low trees (duck! you might get wet if it's misty), then out to views of the coast (or the fog, depending on your luck). Go with a friend so you can keep saying, "Oh my gosh! This is great! And there's no one on the trail!"* Tons of wildflowers in the spring and great photo ops if you're into that--I am always so blissed out that I forget about photos. Bonus photo op at Muir Beach overlook right off of Highway 1. *OK, you may see a few others on Coastal View trail. On my most recent ride, we saw a single runner (that's it!) from Pantoll to Hwy 1. That said, don't rush it, savor it. Look out for bunnies. PS Yes, you could hike this, too, but I never have. I'm sure it's just as nice on foot. PPS the only place you might lose your way is just past Pantoll, but watch for the signs and I think it is clear.

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Coastal View Trail
Coastal View Trail
Coastal View Trail

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Diablo Foothills Regional Park - Trail

Diablo Foothills Regional Park

4.5(45 reviews)
6.2 km

Perhaps unfairly, but as an outsider, I tend to view this part of Contra Costa County as, how do I…read moreput it diplomatically...snooty. There are tract homes that are really mansions in gated communities here. You get a pretty good indication when you take the Livorna Road exit off 680 and head toward the hills. There's a convenient parking lot at the staging area, and the walk begins along a tree-laden path that leads into the Shell Ridge Trail. This is where the open rolling hills provide some challenges to the calves. You eventually make it to the most picturesque portion of the hike on the Mokelumne Coast-to-Crest Trail. This is where the residential areas disappear and you're at one with nature...except for the occasional mountain biker. Small mouth was warranted during such disturbances, but they didn't prevent me from a scenic view of Mt. Diablo (photo: https://bit.ly/3hZ96M1). Now I could've gone deeper into Mt. Diablo State Park, but hey, I'm not a rugged mountaineer. Instead I made a turn and precariously made my way downward to the Alamo Trail. I didn't realize I exited the park until I saw distracted people on the path yelling into their mobile phones as they let their dogs do their business. Hey, where's your scooper, sister? I think with more thoughtful planning, you can probably avoid the ritzy people with their ritzy homes. Maybe not. RELATED - Exploring this part of Contra Costa County? Here's a collection of places I've visited and reviewed: https://bit.ly/2x1rlsD

This review is for the trail starting at the livorna road staging area…read more I really liked this trail. It's a lot of up and down. The map on all trails leaves out a few mountain top options, so I went off trail a few times and followed an alternative route. This is definitely a trail that you will need your map in order to stay on. I hiked on a cloudy September day, temperature around 75 to 80°. On a hot day with direct sunlight this would be potentially unbearable.

Photos
Diablo Foothills Regional Park
Diablo Foothills Regional Park
Diablo Foothills Regional Park

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Iron Horse Trail - hiking - Updated May 2026

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