Forsythe Canyon to Waterfall and Gross Reservoir

EASY 109 reviews
#10 of 109 trails in

Forsythe Canyon to Waterfall and Gross Reservoir is a 2.2 mile moderately trafficked out and back trail located near Nederland, Colorado that features a lake and is good for all skill levels. The trail offers a number of activity options and is best used from April until October. Dogs are also able to use this trail but must be kept on leash.

DISTANCE
2.2 miles
ELEVATION GAIN
419 feet
ROUTE TYPE
Out & Back

dogs on leash

kid friendly

birding

camping

hiking

nature trips

trail running

walking

forest

lake

views

waterfall

wild flowers

wildlife

muddy

rocky

Looking for a trail that will provide some shade on a hot Colorado day? This hiking trail has shade, plus a waterfall, a stream, a canyon, and lake. It’s hard to beat. Forsythe Canyon is just outside Boulder, Colorado (1hr 15min from Denver), and is an easy to moderate hike.

hiking
12 days ago

Decent hike but there wasn't anything very special about it. Some rocky areas could make this hike challenging for some children and dogs.

hiking
12 days ago

This is an easy and serene hike. It runs along a brook and the sounds are relaxing. It is not well traveled and I probably would not do it alone due to seclusion and bear warnings. Only saw about 5 hikers and they were near the trailhead. It is a bit overgrown and there are a lot of mosquitoes so come prepared. If you're hoping to see a big waterfall, you will be disappointed. At the end it is very rocky and you have to climb over big rocks. I believe it was about 2.5 miles overall to get to the point where you see the lake. It is hard to get down to the lake so I wouldn't consider it an access point.

hiking
18 days ago

hiking
19 days ago

hiking
22 days ago

hiking
22 days ago

hiking
23 days ago

Fun out and back hike. Had the whole trail to ourselves. Saw one other person almost at the end on the way back. The waterfall is pretty small and you do have to climb down onto some rocks to see it. Easy enough of a hike for my 8-year-old who isn't into hiking. Take bug spray if you are sensitive to mosquitos. I didn't find them bad but my daughter was complaining about them in certain sections.

23 days ago

2 miles total in and out! The waterfall is hidden behind some fallen branches and it's little. There is a rocky spot you must climb... may not be so easy for all dogs. At the end of the hike you can see part of the reservoir, which was gorgeous! Clear waters!

hiking
28 days ago

Great family hike.

hiking
29 days ago

1 month ago

hiking
1 month ago

This was a really great walk/hiking to the waterfall there were many shady areas in the trail that followed the creek so it wasn't excessively overheating you!

hiking
1 month ago

hiking
1 month ago

Nice trail. BRING BUG SPRAY! Tree down on trail easy to go under. Waterfall is a side trail we originally missed then saw on the way back. Climbed up rocks a little ways for some better views. No swimming at the reservoir.

hiking
1 month ago

The trail was really easy and very beautiful. The mosquitoes were terrible and we finished the hike covered in bites, which was the only downside.

hiking
1 month ago

Awesome hike. Really easy, and when you get to end you can climb some rocks down to base of falls and mouth of reservoir. Took 1hr 15 min there and back! Loved it

1 month ago

The trail is poorly maintained and overgrown. There was a huge tree down in the middle of the path that was really hard to get around with a baby in a pack. Also it is hard to get to the bottom of the waterfall and it was so overgrown when you got there you really couldn't admire it. Other than that it is a beautiful location with a nice stream along for most of the hike.

hiking
1 month ago

It is a nice and easy hike but the end is pretty disappointing. You end up in a small cove and can't really see anything. There were a bunch of humming birds at the end which made it a little bit worth it.

hiking
1 month ago

hiking
1 month ago

We chose this hike based on a couple articles we saw and thought we'd be able to have some water access. Unfortunately it's all posted NO body to water contact. Not sure why but it is. Waterfalls were beautiful, trail is a nice woodsy path along a brook, some difficult areas over rocks and roots but I agree with the easy rating overall. Trail head is on the left off the Forest Service Road which is easy to miss of you're distracted by kids as I was. We ventured up the road a ways before backtracking to find the trail entrance. There is a restroom but NO water filling, so prepare in advance. Fairly remote so less traffic was nice, but all the more reason to plan well.