There are hikes near Denver that people do once and move on. Then there is the Lost Lake hike near Nederland — a trail that brings people back season after season, in every condition from peak summer wildflowers to deep winter snow, because it consistently delivers one of the most rewarding mountain experiences within an hour of the city. With 1,000 feet of elevation in less than 2 miles, this hike is an extraordinary mixture of beautiful pine trees, rushing water, and an emerald lake — an absolute must-do, especially since it is only an hour from Denver. This guide covers everything you need to plan your visit: trail details, parking, seasonal tips, what to bring, and how to build a perfect Colorado day around the hike — including a stop at Red Rocks Voyager country on the way home.
Lost Lake at a Glance — Trail Facts
Before you lace up your boots, here is the essential information for the Lost Lake hike near Nederland:
- Distance: 4.4 miles, approachable out-and-back
- Elevation gain: approximately 1,000 feet
- Difficulty: moderately challenging, takes an average of 2 hours 4 minutes to complete
- Trailhead: Hessie Trailhead, off County Road 130, west of Nederland via Eldora
- Starting elevation: 9,100 feet
- Trail type: Out-and-back with optional lake loop
- Dogs: Welcome, but must be on a leash
- Season: Open year-round and beautiful to visit anytime
- Camping: 8 designated campsites encircling the lake — first-come, first-served, no permit required
- Fishing: Permitted in accordance with Colorado Parks and Wildlife regulations
- Land manager: USFS — Arapaho and Roosevelt National Forests
Getting to the Hessie Trailhead from Denver
Take I-25 North to U.S. 36 West from Denver, then get off at Baseline Road. To get to Nederland, take CO-119/Boulder Canyon Drive. Travel 0.6 miles south on Colorado Highway 119 from Nederland. On County Road 130, which is designated for Eldora, turn west. Travel through the valley on the paved road until you reach the Town of Eldora. Proceed 0.75 miles to the fork in the road after the pavement ends.
If you are in a 2WD vehicle, park here where permitted along the road. If you have a higher clearance 4WD car, you may take the road 0.5 mile farther to the established parking area. Either way, factor the extra walking distance into your total hike time. The drive from Denver to the trailhead runs approximately 60 to 75 minutes depending on traffic through Boulder Canyon. Always check the National Weather Service forecast before departing — mountain road conditions and trail conditions can change dramatically overnight, especially in spring and early autumn.
Parking — What You Need to Know Before You Go
Parking is one of the most important things to plan properly for the Lost Lake hike near Nederland. Parking is very limited at the Hessie Trailhead, so be sure to take some time to review details before departing for your hike. Because the Hessie Trailhead is one of the most popular in the state, Boulder County offers a shuttle that runs from Nederland every 15-20 minutes on weekends during the summer months and on some holidays. This shuttle departs from the RTD Park-n-Ride in Nederland.
If you are driving, aim to arrive at the trailhead before 7:00 AM on weekends in summer — spots disappear fast. Late arrivals will need to park in Eldora or take the Nederland shuttle, which adds distance to an already substantial hike. Plan accordingly and build the extra buffer into your morning. The Colorado Department of Transportation website has road condition updates for mountain routes including the Boulder Canyon corridor.
The Trail — What to Expect Step by Step
The steady, well-graded climb leads you through a mixed conifer forest dappled with aspens, past small waterfalls, and ends at a scenic lake with mountain vistas. Here is a more detailed breakdown of what to expect on the Lost Lake hike near Nederland:
The approach from the shuttle drop or road parking (0 to 0.5 miles). Hikers follow a trail that runs along the north side of the 4WD dirt road, past a small pond and through waterlogged meadows. Keep your eyes peeled for moose who frequent these meadows along this lowland segment of the trail. This flat opening section is deceivingly gentle — enjoy it before the climbing begins.
Hessie townsite and footbridge (0.5 miles). At approximately half a mile from the shuttle drop, a sign marks the site of the old mining town of Hessie, Colorado. Soon the trail crosses the North Fork of Middle Boulder Creek via a footbridge, where a large sign maps and describes the several trails and destinations accessible from this point — including Devil’s Thumb Lake, Jasper Lake, Woodland Lake, King Lake, and Bob and Betty Lakes. This junction is a good moment to check in with your group about pace and energy before the climb ahead.
The main climb (0.5 to 1.6 miles). From the trailhead, take the Devil’s Thumb Trail #902, which climbs steeply for about 0.5 miles on an old road. The shorter Devil’s Thumb Bypass turns right at 0.8 miles, but stay left and you will soon come to the Lost Lake Trail. As you climb higher you will start to hear Middle Boulder Creek rushing to your left. There are many cutoffs from the trail around this area that will take you to the river. This mid-section is where the altitude earns its reputation — take it steady, hydrate well, and stop to take in the waterfall views that line most of this stretch.
The final push to Lost Lake (1.6 to 2.1 miles). It is 1.1 miles from the trailhead to the Lost Lake Trail junction. Turn left following signs for Lost Lake Trail #813. The lake is up another half mile on a good trail. This final segment is steep but worth every step when you arrive.
Lost Lake itself. Bryan Mountain provides a spectacular backdrop to Lost Lake and makes for a picturesque spot, especially in fall and winter. The lake sits in a natural bowl surrounded by conifers and open rocky shoreline. There are 9 campsites available — first come, first served — and fishing is popular. Enjoy the views, circle around the lake, and meander back down. The optional lake circuit adds roughly half a mile and is absolutely worth doing on a clear day. Take your time here — this is what you came for.
Wildlife, Wildflowers, and What Makes This Trail Special
Part of what keeps the Lost Lake hike near Nederland in conversations among Colorado’s best trails is not just the lake — it is everything along the way. Hikers have reported fox, weasel, and deer sightings around the lake and campsite area. Moose frequent the waterlogged meadows near the approach trail , and one of the most photographed mountain views in the entire Front Range is the Indian Peaks backdrop behind the lake. The open parts of the climb are covered in wildflowers in early summer. Aspen groves along the lower trail turn a striking gold by late September and early October, rivaling any fall color Colorado has to offer.
Two-thirds of the hike runs parallel to a rushing waterfall , which means the soundscape of the trail is as extraordinary as the visual scenery. On a warm summer morning, with light filtering through the aspen canopy and the sound of Middle Boulder Creek below, the Lost Lake hike near Nederland delivers an experience that genuinely justifies the early alarm and the drive from Denver. The Red Rocks lakes guide covers more of Colorado’s best alpine lake destinations within reach of Denver if you want to compare and plan multiple visits.
Seasonal Guide — When to Visit Lost Lake
This trail is frequently travelled in all seasons and makes for a nice day trip from Boulder or Denver any time of year. But each season offers a genuinely different experience:
Spring (April–May). Snowmelt creates rushing streams and beautiful waterfall conditions all along the trail. Expect muddy, waterlogged sections and potentially snow-covered upper trail. Traction devices are often useful. The trailhead road may be impassable for 2WD vehicles in early spring — check conditions in advance through the US Forest Service before departing.
Summer (June–August). Peak season. Wildflowers at their best from late June through July. Trails are well-maintained and fully accessible. The free Boulder County shuttle from Nederland operates on weekends and holidays during summer months, making car-free access straightforward. Arrive early — parking fills before 8:00 AM on summer weekends.
Autumn (September–October). Bryan Mountain provides a spectacular backdrop to Lost Lake particularly in fall. The aspen groves along the lower trail turn gold from mid-September, making this one of the best fall foliage hikes near Denver. Cooler temperatures mean more comfortable climbing and thinner crowds than summer.
Winter (November–March). Lost Lake is beautiful to visit in winter but requires proper preparation. Microspikes or crampons are essential on the upper trail, and the lake itself frequently freezes solid enough to walk across. Nice manageable winter hike — only microspikes are needed if snow is packed down. Snowshoeing on the lower sections is popular with families.
What to Bring on the Lost Lake Hike
At 9,100 feet starting elevation and climbing to roughly 10,100 feet at the lake, the Lost Lake hike near Nederland demands proper preparation regardless of the season. Here is what to pack:
- Water — At least two liters per person. Altitude accelerates dehydration and the climb is sustained
- Layers — Mountain temperatures drop fast and afternoon thunderstorms develop quickly in summer. Always bring more than you think you need
- Trekking poles — The trail is rocky so it is a good idea to bring trekking poles , especially on the descent
- Traction devices — Microspikes or crampons for spring and winter visits when snow or ice is present on the upper sections
- Snacks and lunch — Plan to spend time at the lake. Pack enough food for the full outing
- Sun protection — SPF and sunglasses are essential. The most exposed part of the hike has the steepest elevation gain and offers no tree cover
- Dog supplies — If bringing your dog, carry extra water and waste bags. Leash required at all times
- The 10 Essentials — Navigation, first aid, emergency shelter, fire starting, and illumination at minimum for any mountain hike
Building a Perfect Nederland Day Around the Hike
The Lost Lake hike near Nederland works best as part of a full Colorado day — and Nederland makes that easy. In the charming hamlet of Nederland, stop by Salto Coffee for a cortado or chai and a monster breakfast burrito before hitting the trail. And any visit to Nederland is incomplete without artisan wood-fired pizza and craft beer on the creek-view deck at Crosscut Pizzeria for post-hike recovery.
Nederland itself is one of those genuinely characterful Colorado mountain towns that rewards wandering. The Nature’s Own store on the corner near the roundabout carries fossils, geodes, crystals, and more — worth a browse before or after the hike. The town hosts the famously eccentric Frozen Dead Guy Days festival each March, the Nederland Mountain Film Festival, and a Thursday evening summer farmers market that draws the whole mountain community. For a broader picture of what Colorado’s mountain towns and natural attractions offer, Colorado.com is the most comprehensive starting point available.
Extending Your Day — What Else Is Near the Lost Lake Trailhead
If the Lost Lake hike near Nederland leaves you energized and wanting more, the Hessie Trailhead opens up an entire network of longer and more demanding routes worth exploring on future visits. Lost Lake connects to trails leading to Devil’s Thumb Lake, Jasper Lake, Woodland Lake, King Lake, and Bob and Betty Lakes — all within the Indian Peaks Wilderness Area, which is one of the most spectacular alpine wilderness zones in the entire Rocky Mountain system. You could spend days getting lost in the Indian Peaks Wilderness — there are spots for camping at Lost Lake and tons of other lakes to explore. The National Park Service and BLM Colorado have extensive resources on public lands surrounding the Indian Peaks region for anyone planning a multi-day backpacking extension.
Eldora Mountain Resort also sits just minutes from the trailhead and operates as a ski area in winter — worth combining with a winter Lost Lake snowshoe trip for a full mountain day. And if you are building a broader Denver-area outdoor itinerary, the Red Rocks hiking guide, the Dinosaur Ridge near Red Rocks guide, and the Red Rocks fitness training guide all cover exceptional outdoor experiences within easy reach of Denver that pair naturally with a Nederland day trip.
Book Ride From the Mountains to the Rocks — Adding Red Rocks to Your Colorado Day
Here is a day trip combination that experienced Colorado travelers swear by: the Lost Lake hike near Nederland in the morning, followed by an evening concert or sunset visit at Red Rocks Amphitheatre in Morrison. The drive from Nederland south through Boulder and west toward Morrison takes approximately 45 to 55 minutes — perfectly positioned to get you to a 6:00 or 7:00 PM show after a post-hike meal in Nederland. Check the full 2026 Red Rocks concert schedule and plan the full day around both experiences.
For the Red Rocks leg of the day, skip the post-hike driving stress entirely and use a professional red rocks car service through Red Rocks Voyager. After a full day on the trail, the last thing you want is to navigate concert traffic and parking. Red Rocks Voyager picks you up, handles the denver to red rocks car service route, and gets you there relaxed and on time. Book your ride before your hike day so the whole Colorado adventure is planned from morning to midnight. Read the stress-free ride to Red Rocks complete guide for everything the service covers, and check out the Red Rocks scenic transportation guide for why the drive itself through the Morrison foothills is worth experiencing with a professional driver.
Flying into Colorado for a hiking and music trip? Red Rocks Voyager covers denver airport to red rocks transportation directly from Denver International Airport. Read the Denver airport to Red Rocks transportation guide for full details on how it works. View all services and pricing before your trip. For groups making the most of a Colorado outdoor adventure, also explore luxury SUV transfers and red rocks shuttle — ideal for hiking groups heading to a show after a full trail day together. Check the FAQs if you have any questions before booking. And for more ideas on what to explore near Denver alongside the Lost Lake trail, read the Red Rocks and Golden Colorado guide and the full smart Red Rocks travel tips guide.
What Denver.org says about Red Rocks and what the Lost Lake hike near Nederland delivers on the trail both point to the same conclusion: Colorado does outdoor experiences better than almost anywhere on earth. Plan ahead, get there early, pack the layers, and make the whole day count. Book your ride with Red Rocks Voyager for the evening show and let the mountains do the rest.
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