Explore the most popular birding trails in Alderfer / Three Sisters Park with hand-curated trail maps and driving directions as well as detailed reviews and photos from hikers, campers and nature lovers like you.

nature trips
12 hours ago

Nice hike! Great view on the rocks at Brothers Lookout. Only ran into a few other hikers on a weekday morning so not too busy.

Great for a hike with kids. Lots of different trails to make it longer or shorter. Very busy on a Sunday morning.

Nice way to get away from the city and have an enjoyably lazy walk on some pretty trails to get back to center.
However “lightly trafficked” is not the way to describe these trails... but I’ll definitely be back.

1 day ago

Peaceful and beautiful!!!

I went about 7:30am today and while the parking lot was mostly full, I only ran into a handful of other hikers. Plenty of open space and lightly wooded areas to take in. I didn’t see much wildlife but there are pockets of wildflowers growing and i was lucky enough to see some hummingbirds. Trails are clearly marked. It was a nice, easy Saturday morning hike!

This was a nice trail with light traffic. The trip to the top of the summit trail is worth the views. The loop itself is ok with an equal amount of sun and shade. The only reason I can’t give it a five is because the views aren’t plentiful, but still a good trail for those who enjoy the exercise and not crowds.

I thought this trail was kind of boring, but still good to get out to a place with no snow in March, which is when we did it.

A nice hike, not too far from Denver. Crowds were out in force on Memorial Day, but thinned out greatly as we got farther away from the park entrance. We saw many more mountain bikers than hikers.

Trails were all in good condition and clearly marked. Lots of gentle elevation change, and a couple of nice views. A good warm-up for more rustic hiking. There are lots of trails and shortcuts back to the park entrance in case the day goes south for any reason.

4 stars because a lot of the mileage comes from retracing steps on a highly trafficked trail, and also because folks with dogs left little tied baggies of poop all over the trails. The beautiful wildflowers made up for it!

Great easy hike for families with small kids. Great views and well groomed trails.

Wild iris and other flowers in bloom. Hummingbirds buzzing. A few other hikers but many more mountain bikers. Everyone having a good time. Bike Ranger issued a few warnings to folks with dogs off lead. At the top is a vista of beautiful snow capped Mt Evans. Blue sky!

Great trail. The trail was dry and very scenic.

Easy hike and good for taking non-acclimated visitors!

Beautiful view.

Great hike with the kids. Easy trail

Loved this hike and did our kids. Easy enough and some beautiful views.

Well marked trail. There were plenty of mountain bikers at the trailhead, but I only ran into a few hikers on the trail. Parking was full by 9:30 (Sunday). Definitely worth it to add Brother’s Lookout! Beautiful views.

1 month ago

Loved it. Very pretty. Great lookout at the top. One of the best foothills hikes I’ve found so far

Good trails well maintained.

It is a nice easy hike. The evergreen summit was fantastic. The trails through the three sisters is good but not great.

2 months ago

This hike is easy. Well maintained trail. My kids loved the view on the top of the rocks.

pretty easy and relaxing trails. was muddy and icy/snowy in some spot, but regular shoes would survive just fine. the view from the top was amazing.

I enjoyed this hike with my dog. The trails were a little snowy, but were not icy at all. I would bring Yak Tracks just in case. I would say this loop is easy/moderate, and very leisurely. I probably only ran into 3 groups of people during the entire hike today.

Nice and easy trails with lots of families and dogs. Well maintained and no ice.

Super dog friendly and beautiful trail. Incline is steady in parts and more severe in others but overall it’s not that difficult. Rewards are the view at brothers lookout.

Great hiking. No ice. Not overly crowded early.

Nice and easy trail. The overlook was pretty too. Dog friendly. A bit icy and snowy at parts, but micro spikes aren't necessary.

Scoped this trail out to potentially take family here this weekend, and will definitely be returning. The weather was perfect and the trails were clear for the most part, with little ice and manageable snow.

Fantastic / relatively easy, good for kids/ families and dogs are happy here. Comfort station at parking lot is well maintained. I did this trail on a weekday in Winter and saw very few others. If Fawn is too easy, take Ponderosa trail!

5 months ago

nice and easy hike. The view from the lookout was pleasant, dog friendly trail with little elevation gain.

Plenty of good exercise and very few hikers once away from the three sisters formations. No real “views” or summits on this hike, so easy for all types of hikers. We did do some side-scrambling to summit the middle sister (which has some great views of the divide). It didn’t appear to have marked trails, but was fairly easy to ascend.

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