Cancel

    Open app

    Search

    Mt. Sanitas Trail

    4.6 (73 reviews)

    Mt. Sanitas Trail Photos

    You might also consider

    Recommended Reviews - Mt. Sanitas Trail

    Your trust is our priority, so businesses can't pay to alter or remove their reviews. Learn more about reviews.
    Yelp app icon
    Browse more easily on the app
    Review Feed Illustration

    Reviews With Photos

    John H.

    Stairmaster in nature, walking up the rock formations for the first half. Pleasant views of Downtown and neighboring mountains. Moderate difficulty while giving your quads a good workout. No blazes but the trail is fairly easy to follow. There isn't a prominent sign for the trailhead and there are a few along the road. Choose between street parking or a lot for another trail up the road. Downhill was primarily a dirt road ( or versa since this is a loop). It can be a little slippery if there is recent snow or rain.

    Beautiful views from the Mount Sanitas Trail!
    Shayla B.

    Such a pretty hike! Mount Sanitas has a great mix of inclines and flat paths that reveal some of the most gorgeous views of Boulder and beyond. What's nice is that you can truly control how easy or how difficult that you want your hike to be. I did a 4 mile loop trail from the Sanitas Valley trail to the Mount Sanitas trail, and it gave me a great mix of everything that I was looking for. The Sanitas Valley Trail starts off easy with a flat, wide sandy path. It then begins to gradually incline until you reach a few trail splits. At the top of this trail, there's a beautiful vista point that has a nice view of the city. From here, you can connect to a few different trails. This is where I connected to the Mount Sanitas trail. Unlike the Sanitas Valley trail, the Mount Sanitas trail is super rocky and features several inclining switchbacks. This trail is super steep and slippery with lots of uneven rocky terrain. This is definitely the most difficult part of the trail and will require some scrabbling up large rocks. This section is short but you'll have to be careful and take your time. It's totally doable but would definitely wear shoes with good traction to prevent lots of slipping. Once you make it up to the top, you'll see a barrier and that's the Mount Sanitas summit. This is where you'll see the best views. Coming down the Mount Sanitas trail was actually more difficult than going up for me. It's even more steep and slippery on the downhill than it is on the uphill. For those with bad knees; I'd avoid going down this way or at least bring your hiking poles to relieve the pressure from your knees. My knees weren't affected as much, but my thighs and feet were definitely burning. You will feel it all in your quads since you basically have to stop yourself from slipping down that steep hill. Definitely a killer workout coming down. I came here during the week in the late afternoon, and there weren't too many people out. But the people that I did come in contact with were very friendly. There's a small parking lot across the street with limited parking spaces. During the week, it was pretty easy to find a space, but I'm sure it fills up on the weekends. There's also a really cute little picnic area that's nestled between some trees near the entrance. I took a snack break here and it was really chill. This was easily one of my favorite Colorado hikes. I would love to come back again to explore more of the trails within this park. I'd highly recommend the Sanitas Valley-Mount Sanitas trail loop if you don't mind a little scrabbling. Also, make sure you bring water and wear sunscreen as this entire trail loop is pretty much exposed. It's an excellent workout with some super scenic and rewarding views once you reach the summit.

    Nice hiking day!
    Nora F.

    I've been having dreams about this hiking experience since we came back from Colorado. It's been two weeks and I'm losing sleep! Hubby'a niece and her boyfriend plus their two dogs took me here. They are expert climbers. I'm an expert on taking a break between the hike and shoot tons of photographs! This was the most challenging trail I've ever done in my life! Finally, I made it to the top, at 6,843 ft! With my new sweatshirt, pants, and cap, I had an excellent fashion show on top of Mount Sanitas. They imposed the covid rule, so every climber/hiker must wear a mask. I passed a breathtaking scenery along the way--what a beautiful place to be. We started from the most challenging trail climbing up to the top and going the other way to reach the ground but hitting the ground from the top wasn't easy either. When we made it to the top and looked down on Boulder, I saw a beautiful city from above. It was almost like looking at my miniature village, pretty awesome, except the miniature one was a mass of paper. I think best to hike yourself and witness the beautiful city yourself because of the feeling of being up there is not the same as looking at the pictures. While walking back to the car, we saw a lost baby fox staring at the passers-by. It's cute but I doubt I can adopt. All in all, the hike took about an hour and a half to two hours because I had to take a min break here and there due to my photography skills, haha. The views were magnificent! I'll do it again if I get a chance. Awesome!

    Alisa J.

    Great trail! It's definitely challenging in some parts, but worth the view. Parking can be tricky so make sure to get there early! It's also not shaded in some parts and can get hot. Bring extra water.

    View at the top looking out towards Boulder.
    DeAngelo W.

    This is the best FREE workout in Boulder! The first quarter mile or so is a punch in the gut and mouth out the same time and will make you want to quit. The trail is abundant with wildlife and AMAZING views! The view at the top is incredible with views of Pikes peak to the south, and Boulder to the east. It's about a 3 mile loop with about 1,200 ft elevation gain in just over a mile. Definitely a must do if you're in the Boulder area and looking for a nature outing.

    Gayle L.

    The climb up the trail is beautiful right now! Everything is green and the wildflowers are blooming. It took about an hour to the top with a few photo stops. It seems a bit more than moderate and it will definitely get your heart pumping. There aren't really any level parts, it's pretty much up and back down. I definitely recommend this trail!

    Flower on hike
    Nathan R.

    Beautiful! This is a moderate to hard hike due to the steep elevation and non sturdy ground at times. We had no problem getting up and sometimes with vertical inclines we had to climb. Getting down sometimes required us to take on the sexy crab walk to decline off some rocks. Views of Boulder were beautiful. There was plenty parking on a weekend too so that was a nice surprise. Bring plenty of water! We mistook how long this would take us and were pretty parched at the end of our hike haha. All in all a great workout and well worth the view once you get to the top!

    Terry G.

    Beautiful hike on Mt trail and Lions Lair. Nice paths,some rocky parts and steep ascent and decsent. Kind of busy but dog owners not picking up after Fido or picking up the poo and leaving the full bag along the trail. It was a pretty area and we enjoyed every step. We went at 8 AM and there were a half dozen open parking spots. I will do this hike again I think we logged 6.9 miles with some of it a little difficult.

    View Halfway up the Hike
    Bridget M.

    One of my favorite hikes! Free street parking is easy to come by on Mapleton Avenue. I recommend taking the trail to the left which is a mile stair climb to the top. There are several great resting points along the path with a great view of Boulder, CO from the top! From there I recommend taking the East Ridge trail down, which is on the other side of where you entered the top, to the Sanitas Valley trail a nice 2-mile descent. Altogether an enjoyable 3 mile climb that takes roughly 2 hours.

    Alice Q.

    A 3.3 mile hike across Boulder's open space trails and galore! Just off of Sunshine Canyon Dr., and Mapleton Ave, this trail is very enjoyable and very challenging for beginners, but a low impact for those who are goat legged. The parking can be free at times, especially coming as the early bird. Great trail for a 2-3 hour hike traveling up and along the ridge line. I like to go in the evenings, and overlook the Boulder area and surrounding valley. Weekends are very busy with hikers and trail runners but trail is fairly wide for the most part. Take care on wet days as rocks may be rather slick. Dogs are welcome as long as they are on leash or well disciplined. Definitely start to the left, hard stuff first. Then make your way down slowly after the top. Gorgeous area! The way down (on the east) was a lot of fun scrambling and then winding through the valley. Saw folks of all sorts on the trail, from the elderly to people doing it with toddlers on their back. It was difficult but doable and left me with a sense of accomplishment.

    Seetal P.

    Hiked this trail for the first time last Sunday and it was awesome! We went from the trailhead on all trails aka climbed the stairs up instead of down. It was an awesome work out with beautiful views. Noticed a lot of people running it as well. A great work out and would def come back. There were a few icy spots on the trail but nothing requiring different shoes, just some caution - esp for those carrying babies or 3 year olds in our case! My only con is that not everyone... or almost no one leashes their dogs. There are a few parking lots but best to get their early to swipe a spot. We started around 8am and had no trouble!

    Near the summit
    Jordan S.

    This place is definitely a must come sunshine or a little snow. The trail is maintained well and has a good mix of steps and rocky ascent. Careful on the way down as it can get a little slippery when wet. Towards the top it can get a little confusing as there are no clear signs that point you through several passages of boulders (part of trail) so be on the lookout if you want to stay the course. Afternoons can bring a lot of foot traffic so if you plan on jogging or running I suggest you go early morning. Same thing with parking. Overall, there are awesome views of the city of Boulder or the million dollar homes that pepper the foothills. The hike is moderate but if it's your first time at this altitude definitely bring water and a snack.

    Jen E.

    This is a beautiful but challenging hike. I loved the incline and views! It is possibly one of my new favorite hikes in Boulder, Colorado. A friend of mine kept telling me how awesome it was so I decided to give it a try. Right of the bat the hike is straight up and I got a little worried. But I like a challenge so I pushed my through and ended up beating my friends time by 7 minutes. I felt so much energy by the nice people passing and encouraging me. I have to mention the gorgeous views as well. You have a beautiful view of Boulder and the Flatirons. I have decided to try to hike Sanita's once a week and try to make it up and down in less than an hour. I don't know if I can but the challenge is fun. There are so many great hikes in Boulder but this one is truly one of the best!!

    Sun is just breaking the horizon.

    See all

    1 year ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    3 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    2 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    4 years ago

    Helpful 3
    Thanks 0
    Love this 5
    Oh no 0

    4 years ago

    Helpful 15
    Thanks 0
    Love this 17
    Oh no 0
    Photo of Matt C.
    126
    518
    2702

    5 years ago

    Helpful 4
    Thanks 1
    Love this 2
    Oh no 0
    Photo of Nora F.
    185
    1149
    14507

    6 years ago

    Helpful 4
    Thanks 0
    Love this 4
    Oh no 0
    Photo of Alisa J.
    240
    1889
    6808

    4 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    6 years ago

    Helpful 1
    Thanks 0
    Love this 2
    Oh no 0

    5 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    8 years ago

    Helpful 2
    Thanks 0
    Love this 2
    Oh no 0

    5 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    9 years ago

    Helpful 1
    Thanks 0
    Love this 1
    Oh no 0

    5 years ago

    Helpful 1
    Thanks 0
    Love this 0
    Oh no 0

    6 years ago

    Helpful 2
    Thanks 0
    Love this 1
    Oh no 0
    Photo of Alice Q.
    3451
    2340
    19658

    9 years ago

    Helpful 37
    Thanks 0
    Love this 30
    Oh no 0

    8 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    9 years ago

    Helpful 2
    Thanks 0
    Love this 1
    Oh no 0

    12 years ago

    Helpful 16
    Thanks 0
    Love this 12
    Oh no 0
    Photo of Chris G.
    1571
    2176
    4840

    10 years ago

    Helpful 10
    Thanks 0
    Love this 7
    Oh no 0

    7 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    13 years ago

    Helpful 3
    Thanks 0
    Love this 2
    Oh no 0

    15 years ago

    Helpful 4
    Thanks 0
    Love this 4
    Oh no 0

    10 years ago

    Helpful 6
    Thanks 0
    Love this 3
    Oh no 0
    Photo of Gee W.
    64
    148
    16

    11 years ago

    Helpful 6
    Thanks 0
    Love this 3
    Oh no 0

    16 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    15 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    11 years ago

    Helpful 3
    Thanks 0
    Love this 0
    Oh no 0
    Photo of Sasha B.
    1715
    583
    3987

    11 years ago

    Helpful 2
    Thanks 1
    Love this 2
    Oh no 0

    5 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    7 years ago

    Helpful 3
    Thanks 0
    Love this 2
    Oh no 0

    9 years ago

    Helpful 6
    Thanks 0
    Love this 1
    Oh no 0

    10 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    6 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    15 years ago

    Helpful 13
    Thanks 0
    Love this 5
    Oh no 0

    13 years ago

    Helpful 0
    Thanks 0
    Love this 0
    Oh no 0

    13 years ago

    Helpful 2
    Thanks 0
    Love this 0
    Oh no 0

    11 years ago

    Helpful 3
    Thanks 0
    Love this 3
    Oh no 0
    Photo of M A.
    147
    679
    129

    16 years ago

    Helpful 0
    Thanks 0
    Love this 1
    Oh no 0

    14 years ago

    Helpful 2
    Thanks 0
    Love this 1
    Oh no 0

    Page 1 of 2

    Ask the Community - Mt. Sanitas Trail

    Review Highlights - Mt. Sanitas Trail

    If you're in the Boulder area looking for a quick, yet satisfying hike, look no further.

    Mentioned in 5 reviews

    Read more highlights

    Verify this business for free

    People searched for Hiking 765 times last month within 15 miles of this business.

    Verify this business

    Chautauqua Park - More excavators

    Chautauqua Park

    (348 reviews)

    Things are changing here after 100 years. Chautauqua Auditorium is being renovated and winterized…read more It had been needed before this as another concert venue in Boulder would have been appreciated sooner but once Boulder won Sundance it became a necessity. But when you come in the summer it will still look the same. A removable heated tent will be erected inside and heated by geothermal heat from underneath that will be transferred underground from the dining hall kitchen's surplus stored energy. So modern in such an old structure. So when you visit this spring there is a lot of truck traffic and digging and detours around the building but you can see from the last picture, the green and the view of the Flatirons are undisturbed.

    Overall, it was a refreshing late October hike on the Flatiron Loop trail! Since we were first time…read morevisitors, we asked for a trail recommendation at the ranger station that fit in with our plans, so something in the 2-hr range. They suggested going in a counterclockwise direction which got the elevation gain done sooner and would finish with a more gradual descent. Being a sea-level creature, I did have to catch my breath a few times on the way up. Now, at the uppermost part of the loop after a bunch of stone steps, there were some all-rock areas where hunching down with a hand or two on the rock helped with balance. Afterward we noted signs on the trail allowing horses. They must have goat like abilities for those rocky parts, I thought. If you like seeing people, there were plenty during the early afternoon hours, sometimes making passing on narrow trail sections a little tricky. We got lucky with parking, going around the large grassy area only once. On the way out, we thanked the ranger for the great recommendation, gave up our parking spot to the next lucky person and went on our way, with plenty of time for our next activity.

    Lion's Lair Trail - Views at the end of spring.june 14, 2016

    Lion's Lair Trail

    (5 reviews)

    Great trail. Nice views. A little over 4 miles with a manageable, gradual incline. I'd say it's…read moremoderate but not particularly challenging. Saw a lot of people running. The trail is well-maintained and marked. The trailhead sign isn't readily apparent from the road so we had to pull over and check that it was the right one. The GPS did have the trailhead as slightly further down the road but we ended up in the right place. There's parking along the road, FYI. The trail will take you to the top of Mount Sanitas. Take a look at the map I posted -- there are multiple trails that take you to the peak.

    Beautiful hiking trail just outside of Boulder. I freaking love this trail. I was in Denver and…read moreBoulder for a conference & to see friends. This was one of the short hikes I was hoping to squeeze into my busy day so that I could get that amazing mountain view that I don't get to see in the city. The trail itself is not too steep, and offers beautiful views all around, no matter where you are on the trail. When you are navigating to the trail, you will be driving uphill, and lose cell signal as you approach the base. There isn't really any signal on the trail in general. Parking is all roadside parking at the curved bend of a road. There are clearly areas to park for hikers. This trail when I was hiking was populated by locals either hiking solo or in a small group. Would definitely recommend for a couple hour hike. Only took me about 2 hours.

    Gregory Canyon - Right by the road at the trailhead. Just enjoying a nice fall day!

    Gregory Canyon

    (6 reviews)

    This trailhead is a hub with access to many other trails. I wanted to climb Flagstaff Mountain and…read morethere are multiple options to get to the top. I started with the GC trail and created a loop with Rangeview and Flagstaff. Rangeview delivered an amazing view of the Rockies. GC is on an incline so you get to look down into the creek and canyon. The western side also offers views of the adjacent Chautauqua Park. Flagstaff summit was not as dramatic, and upon the descent you look out onto Downtown Boulder. I inadvertently took Crown Rock trail, which I do not recommend. It has a lot of loose rocks and gets slippery. Trails were easy to follow and major intersections had clear signage. Only six parking spots! However, you can park for free with some off-road spots on Baseline Rd. I regret starting at 9:30 as trails were pretty sunny. Rangeview offered some needed shade.

    Wow what a marvelous trailhead! The other reviewer was right, you could get to all of Boulder…read moreMountain Parks from here. I arrived around 11am on a weekday and the lot was about half full. There's a few trails that all connect up to Green Mountain, so take your pick. It too me about an hour to summit. The trail was beautiful and in better shape than the Bear Peak trail. It's less steep, but still pretty long and can be an adventure. You get some amazing views, better than Bear I think. Seeing the first flatiron above the fog was so pretty. The summit sports a register and a lot of chickadees begging for food. Don't feed them! Enjoy the mountain air and sunshine, and the fact your so close to town after your hike!

    Settlers Park - Junction of longer trails

    Settlers Park

    (3 reviews)

    Now named "The People's Crossing" to emphasize the variety of founders, both indigenous and…read moreEuropean, this is a fine park situated across Boulder Creek from Eben G Fine. You can also connect to many trails north, west, and south! A true crossing of people. With massive Red Rocks and lots of nature, you can do a great amount of exploring here. There's two lots for parking, one off Canyon, or you park on Arapahoe and walk over. Most folks enjoy doing the rocky scrambles near the beautiful sandstone outcrops. They are similar to Garden of the Gods or Red Rocks Amphitheater! Several trails wind around the rocks allowing for plenty of views. You can even find an old foundation on a cliff! If you want to make an adventure out of it, try heading up Anemone Loop for a beautiful forest jaunt! It took me around 2 hours at a moderate pace with plenty of options for exploring.

    This is an easy yet nerve-wracking hike. Sections of the trail are slick, so the entire time you…read moreare climbing up you're kinda concerned "how am I gonna get back down??" As it turns out, when you reach the top, there are other trails you can take down. The one closer to the creek is notably less slick and less steep. I unfortunately do not remember the name. Once you get to the top though, wow! Gorgeous views of Boulder and the surrounding foothills. Climbing on the rocks at the top is pretty fun too. Overall this was probably the most "scary" hike I did while in Boulder (but not the most demanding) because it is less maintained than the Eldorado Canyon State Park and the Rocky Mountain trails that I did. But it is still pretty easy, just a bit slippery. Use hiking sticks and you should be fine. I think this is a must do when in Boulder.

    Mt. Sanitas Trail - hiking - Updated May 2026

    Loading...
    Loading...
    Loading...