Button Rock Preserve: Sleepy Lion Trail

MODERATE 473 reviews

Button Rock Preserve: Sleepy Lion Trail is a 5.4 mile moderately trafficked loop trail located near Lyons, Colorado that features a lake and is rated as moderate. The trail offers a number of activity options and is best used from March until October. Dogs are also able to use this trail.

DISTANCE
5.4 miles
ELEVATION GAIN
921 feet
ROUTE TYPE
Loop

dog friendly

kid friendly

birding

hiking

nature trips

trail running

walking

forest

lake

river

views

wild flowers

Great trail with a few steep sections and generally rocky. Well shaded in the morning. Dramatic views of Long's Peak, Mt. Meeker, and Twin Sisters beyond the reservoir. Word to the wise: Somewhere near the highest elevation of the loop, it is very easy to get onto another trail called the Button Rock Trail. It eventually (5+ miles) gets to another trailhead called Hall Ranch, at least 10 driving miles and a few ridges away from the parking lot at Longmont Dam.

hiking
3 days ago

Great trail! Worth it to find the wildflowers and waterfall.

hiking
7 days ago

Great, dog-friendly front range hike. Got to parking lot around 8am and it was only half full. Took us 3 hours with a few stops for our pup, but could easily be done in 2. The switchbacks to the reservoir are worth the effort - nice spot to have a snack and relax for a bit. This seems to be a pretty quiet trail comparative to other hikes in the area. It does get pretty sunny and warm, so bring plenty of water.

hiking
7 days ago

Absolutely fantastic hike. This one has it all. With option to keep going further into hall ranch trails at the top. Was about to turn around at the top of sleepy lion in the large field before the view of the dam due to inclement weather but so glad I pushed forward. The sky went from dark most of the afternoon to a full 180 of afternoon sunlight. The river and dam portions are astonishing.

hiking
8 days ago

Great summer trail next to river. People were taking dips and cooling down. First part of trail is a road but then the loop is a great true trail with nice views.

trail running
11 days ago

Such a beautiful hike with amazing scenery. Good mixture of rocks and road. Make sure to do the Sleepy Lion Trail. Will be back for sure.

hiking
13 days ago

This is a nice trail to get away from the busyness of Boulder or other popular front range hikes. The reservoir beautifully frames Longs Peak. Beware that there is little shade on the road portion of the trail in the afternoon.

hiking
13 days ago

Very nice! Get there early to avoid people! When you get to the reservoir go up hummingbird switchbacks

15 days ago

This was a fantastic hike! You start out walking through cacti, crest into a gorgeous golden meadow dotted with wild flowers, continue on to the next peak where you can see for miles, then finish by the perfectly quiet reservior. and, during the week, I didn't see a single other person on the trail. such a hidden gem ❤️

19 days ago

good trail surprising views

hiking
19 days ago

I love this trail

20 days ago

love this trail was busy today but still not packed manged to add the new professional trail addition off sleepy lion to the dam. it is step but worth the effort.

20 days ago

Very moderate. Not too strenuous. Good mountain views.

hiking
23 days ago

Great hike with some unexpected views. There were a few steep portions so be prepared. I loved that it wasn’t highly populated. I went around 8:30 a.m. on a Sunday and only ran into a handful of people. Highly enjoyable overall.

hiking
24 days ago

Great trail with beautiful views. I especially liked the meadow. Started at 3 in the afternoon and did not see a single person - had the trail to myself! Definitely take the Sleepy Lion Trail up and around to the dam - prettiest way and a good hike. Some exposed areas and was hot but could quickly duck back into the shade. It intersects other trails I'd like to try too. No time to go up the Hummingbird Trail this time but plan on it next time.

24 days ago

Great views. Beautiful hike.

hiking
1 month ago

Such beautiful views here!

1 month ago

Quite a beautiful hike, with a little peak at the Rockies. You get a little bit of everything, including a beautiful meadow. My only complaints are the dams and electrical poles, which would momentarily contaminate my experience in nature. But this is Colorado and water is scarce, so I guess it's to be expected. Overall, would recommend!

hiking
1 month ago

I almost hate to write a review and expose this place. Great hike from start to stop. Love the fact they have an are to let you dig of the leash. Just a great hike all round. I want to extend it next time with one of the hiking trails that intersect.

hiking
1 month ago

Excellent hike. Plenty of parking and easy access to the trail. Views are spectacular! Bring your dog!

hiking
1 month ago

awsome trail! dog friendly. like a mile up the hike/walking, the trail splits and a trail is for off leash dogs. my dogs had a blast been off leash. great hike. one of my favorites of all time.

1 month ago

This is truly one of my favorites! Very dog friendly and love the water.

hiking
1 month ago

Went on a sunny day and got picture perfect views. The trail isn't too hard, but we had friends who aren't use to altitude and had to take a few breaks on some of the steeper portions. Amazing views, wish we would've brought a picnic for the lake. I would plan to add the .6 mile to wrap around part of the lake.

It was really easy going and clearly marked. Did it with a two year old who loved it!

1 month ago

I definitely recommend getting off of the dirt road ( though you depart the river) and going up the lion trail. Pretty pines, rocks, and grassy meadows with lots of flowers.
Great views at the top before you defend down to the lake.
Well maintained as well.

hiking
1 month ago

6/10/18 Arrived around 10:00am due to our planned hike not working out. We were still able to get parking. We hiked up along the river and came down the Sleepy Lion trail. The walk along the river was beautiful and a nice warm up before hitting the trail up to the peak elevation. Once you reach the gate at the top of the trail keep an eye out for the arrows to get you back on path. It was pretty hot out, but again we got a late start. I would recommend getting there early to avoid the heat. It was a good workout!

hiking
1 month ago

Beautiful. Take the first left up the hill on lions to get elevation and a workout. Go early to avoid the crowd. Great views!

hiking
1 month ago

Great trail to a beautiful, quiet reservoir. Trail only made better by the fact that dogs can be off leash, as long as you are off main road. Not many people on the trail & good weather.

hiking
1 month ago

Really enjoyed this trail and the opportunity to hike with the pup off leash in a designated area. Starts off on the dirt road way and then climb into the meadow to a great few of the reservoir down below. The trail had a good variety and some fun rocks to climb along the way. We will definitely be doing this hike again!

hiking
1 month ago

If you like rivers, then go! Note there is a long and curvy dirt road to get to the parking area. Also half the trail is a dirt road next to the river, but STILL COOL! And the gushing super high pressure river/dam opening is just incredible. Walking up the humming bird trail to see the reservoir is worth it.

hiking
1 month ago

The way in and the river is a broad, flat road, not a trail, and dogs need to be kept on leash, but the loop up into the mountains (Sleepy Lion Trail), is a great trail, and off leash

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