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Lost Lake via Hessie Trail is a 4.4 mile heavily trafficked out and back trail located near Nederland, Colorado that features a lake and is rated as moderate. The trail is primarily used for hiking, camping, snowshoeing, and backpacking and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

Length 4.4 mi Elevation gain 807 ft Route type Out & Back

Dogs on leash

Backpacking

Camping

Hiking

Snowshoeing

Forest

Lake

River

Views

Wild flowers

Wildlife

Bugs

Muddy

Rocky

Snow

Description
Waypoints (3)
Contact
Tips
Getting There

Note: The road to trailhead is open but parking is difficult to find. There is a shuttle that runs between Nederland High school and the Hessie trailhead. Visit https://www.bouldercounty.org/open-space/parks-and-trails/hessie-trailhead/ Note: Due to bear activity, this area is closed to camping from the Hessie Trailhead near Nederland to the Indian Peaks Wilderness Area boundary. Day use along the King Lake Trail or Devil’s Thumb Trail will be permitted; but the Lost Lake Trail spurs off of King Lake Trail will be closed and no use will be permitted beyond that trail junction. For more information, please see https://cpw.state.co.us/aboutus/Pages/News-Release-Details.aspx?NewsID=7508

Boulder Ranger District 2140 Yarmouth Avenue Boulder, CO 80301 Phone: 303-541-2500

A few parts can get very slippery: ice spikes, micro spikes or poles recommended.

Lost Lake is accessed from the Hessie Trailhead just outside the southeast boundary of the Indian Peaks Wilderness near Nederland, Colorado. From downtown Nederland, go south on Highway 72 for .5 miles to County Road 130 and make a right. You will see a sign for Eldora Ski Resort at this junction. In the summer, catch the free shuttle from the RTD Park-n-Ride in Nederland.

Weather
UV Index
Daylight
Reviews (2337)
Photos (1658)
Recordings (1557)
Completed (4948)
Sarah Beckingham
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Jul 11 2020
HikingClosed

We attempted Dorothy Lake but there was no parking, took the Hessie shuttle to the Hessie trailhead and then ended up doing the Devil’s Thumb by-pass trail, about 6.5 miles total. Super nice, a little rocky, and Lost Lake was closed for bears.

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Emily Scott Simpson
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jul 09 2020
HikingRockyScramble
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Kylie Adamek
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarThu Jul 09 2020
HikingRocky

Great trail! Steady incline until you get to the top. Watched two fly fisherman catch fish within 5 minutes at the lake.

John Weeks
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jul 09 2020
Hiking

This hike was beautiful! So many gorgeous wildflowers blooming, several waterfalls, some good shady spots as well. The only two downsides to this hike are: 1. There is limited parking. We arrived around 9:30 and most of the parking was already filled, however we were able to find a spot. When we left around 12:50 there was absolutely no parking and a park ranger was ticketing cars outside of the parking zone, so take the parking zones seriously! 2. Unfortunately the actual entrance to lost lake itself was blocked off due to recent bear encounters. We were sad to not be able to actually see the lake itself, but the wildflowers and waterfalls were still very lovely!

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Andie Balenger
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jul 09 2020
HikingClosed

Trail up to Lost Lake is closed due to bear activity. Hessie Trail is still open.

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Emily Bradley
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jul 09 2020
Hiking

Beautiful trail and the option the go do woodlands lake or Kings lake off of that if you want a longer hike. However lost lake is completely closed right now due to bear activity.

Keith Dorris
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarWed Jul 08 2020
HikingRocky

A great hike this morning that we’ve been wanting to do for quite a long time!! We tried it last Friday, arriving at ~7 a.m., but bailed as there wasn’t parking and we decided to hike elsewhere. Arrived this morning just before 7 and there was plenty of parking. Completely packed/filled up when we got back to the car. Oh, and luckily we didn’t come across the problematic bear that evidently closed the trail after us!!!

Nevena Blattner
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarWed Jul 08 2020
Hiking

Trail now closed as of 7/8/2020 due to dangerous bear. Details below https://www.outtherecolorado.com/news/dangerous-bear-closes-recreation-spot-in-colorado-until-further-notice/article_f72332dc-c12d-11ea-a653-f37fb00cee47.html

Mindy P
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarTue Jul 07 2020
Hiking

Great hike! Parking is difficult depending on the time of day. Streams and waterfalls along the way, even saw a moose (thankfully it didn’t seem to see us). Lake is gorgeous! Went for a swim, very cold as you can imagine. Campers and other hikers, but not overly busy.

Jon Moody
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarTue Jul 07 2020
Hiking

Beautiful hike with lots of scenery but the dry creek bed is a challenge on the feet. Start at 9,000 ft and reach the lake at 10,000 ft with a decent vertical hike. Would be a challenge for the small pups.

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Kunj Shah
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSun Jul 05 2020
Hiking

This hike was beautiful, waterfalls and creeks in the way, with a mix of sun and shade. Highly recommend.

Nabin Shrestha
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Jul 04 2020
HikingRocky

Plenty of picturesque views. Easy hike along the river towards the lost lake. One of the best easy hikes. Perfect for really hot days..

Joel Navarrete
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Jul 04 2020
HikingRocky
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Adam Briggs
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Jul 04 2020
Hiking

Got here at 7am on the 4th and the parking lot was full. We opted to ride the shuttle at the High School rather than try to drive through the high clearance area and it worked out just fine. Dropped off near the trail head and didn’t have to wait very long for pickup. Incredible hike with a breathtaking river throughout. The lake is serene and was fairly populated by campers and hikers.

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Alissa Hiramine
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarSat Jul 04 2020
HikingRocky
Daniel Moyer
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarFri Jul 03 2020
HikingRocky
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Chelsea Jones
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarFri Jul 03 2020
HikingRocky

Hike is very rocky and a super popular and populated hike. But the hike is absolutely gorgeous and has so many different views and sights to see in a short hike- river, lake, moose, mountain views and beautiful wild flowers!

Josh Kappert
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarFri Jul 03 2020
Hiking

The holiday weekend made for larger-than-normal crowds so we had to take the shuttle from the high school. Be prepared to wait a while for the shuttle because each bus can only take six people or two households (whichever is less) due to COVID-19. Taking the shuttle was convenient though as it dropped us off right at the road leading to the trailhead. Despite parking being full, the trail did not feel crowded. The first part of the trail is loose gravel so make sure you've got good shoes. We'll probably come back on a weekday when parking is easier and explore more of the trails.

John Schultz
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarThu Jul 02 2020
HikingRocky

arrived at 8 am on Thursday July 2 and parked on the road side 0.2 miles from portapottys which are at the beginning of the 4th of July road and 1/2 mile from trailhead. Only parking for about 6 vehicles at trailhead and need high clearance to get there. beautiful trail, wildflowers, cascading stream, two waterfalls (the first one is very beautiful, just a little off trail, 1.1 miles from the 4th of July road junction, 0.6 miles from trailhead) and a beautiful lake at the end. Wide trail, rocky, one shallow water crossing, no snow, no trees blocking trail. Busy, but most people had masks and the trail is wide enough to easily avoid others.

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Emily Rhoades
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarThu Jul 02 2020
HikingBugsNo shadeRocky

7/1 (Wednesday) Uneven terrain, very limited parking when we arrived at 8am. Side road parking is about .5miles from the actual trailhead. AllTrails has the trail starting at this parking. Once on the trail you gain about 220 in elevation within a mile, and you’re in the sun. We clocked over 5miles, we looped the lake. 2 nice waterfalls along the way. Last 1/2 mile you gain 300 in elevation!

Len Gehring
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarWed Jul 01 2020
HikingRocky

Today 1st July arrived around 7:30 and parking was good but people were arriving and parking was filling up. We had a wonderful hike looking at flowers and birds. You need good firm hiking shoes as it is rocky. Lost Lake was very beautiful.

Jen Meyer
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarGray StarGray StarTue Jun 30 2020
Camping

BEARS! Beware of bears if you are camping overnight. Arrived on 6/27 with group of friends and was warned a bear destroyed another campsite day prior. Food was not properly stored. Our group had bear canisters and proper protection. The bear walked the perimeter of our campsite during the late afternoon while we were all together. We heard a warning shot fired and camp sites across the way yelling at the bear approximately 45 minutes later. All groups vacated their camp sites from what we could tell. The rangers are aware of the issue. If you plan to camp, bring bear canister, pack very far from campsite, and understand likelihood of encountering bear is pretty high. I recommend this as a day hike, but will not camp here in future until issue is resolved.

Andrea Cerrilla
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarTue Jun 30 2020
Hiking

Nice and easy trail. Parking was easy at 7am on a weekday, but on my way out it was full (10am), so get there early. Took me about 3hrs but I took my time, stopped for snacks, looped around the lake, and stopped for 30min to look at two moose!!! You’re hiking next to a beautiful river for most of it and the trail is very rocky/gravely, so I would recommend good hiking shoes. It gets chilly at the top, especially in the morning, so pack layers. Highly recommend for a short and beautiful hike. The drive from Boulder is also beautiful with plenty of pull-off stops along the way. I wish I packed a bathing suit in the car so I could’ve chilled by one of the spots by the river on the drive back.

Chris Minske
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarTue Jun 30 2020
HikingRocky

Beautiful, short, and not very difficult, but peaceful mid-week and stunning views.

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Leslie Kavanaugh
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarTue Jun 30 2020
HikingRocky

Hiked on 6/29 (Monday). I arrived at 9am and got one of the last parking spots. It’s about a mile from the farthest parking spots to the trail, so factor that into your plans. Beautiful, mostly shady hike with gorgeous views and plenty of wildflowers this time of year. I recommend hiking past the lake, by the campsites, for a great view from above the lake. Blue circles mark the trail past the lake. Only challenge (besides parking) is that this trail is very rocky. Easy to slip. Wear good hiking shoes!

Brandon Melkonian
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMon Jun 29 2020
Hiking

absolutely beautiful, loved it. Beautiful views everywhere. Will be back especially to camp.

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Lynn Marie
Yellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarYellow StarMon Jun 29 2020
HikingRocky

6/29/20 – Mostly shaded, very rocky hike that leads to a beautiful lake. The terrain, at times, has many loose rocks which makes the trail very slick and slightly difficult to walk on. The route runs parallel to a very rapid creek. A few stream crossings are required, but the water level is low enough that you can get across by stepping on the rocks. Arrived at 7:30AM on a Monday morning and had no difficulty with parking. However, when I got back shortly after 9AM, there was a line of cars waiting for spots to open up. There is currently construction on Boulder Canyon Dr., so expect traffic delays if you’re coming from Boulder.

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