Most Denver-area hiking guides funnel visitors toward the same handful of trailheads — and a few of those trailheads now require a permit just to show up. This guide covers four hikes within about two hours of Denver that don’t: a hiker-only foothills loop with skyline views of Golden, a historic canyon trail linking three of Denver’s original mountain parks, a high alpine cirque above treeline, and an 11-mile wilderness trail through some of the Front Range’s best fall color.
None of them need a paid reservation or timed-entry slot (Hells Hole and Ben Tyler, both in designated wilderness, only ask for a free, self-issued wilderness permit at the trailhead), and none of them show up on the standard Rocky Mountain National Park itinerary.
Last verified: October 2026. This guide was built from U.S. Forest Service trail pages, Jefferson County Open Space records, Colorado Mountain Club route pages, Colorado’s state trails database, the user-contributed Hiking Project, the Colorado Encyclopedia, Visit Golden and Visit Glenwood Springs listings, and news coverage.
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Quick answer:
- Mount Galbraith Park — a hiker-only loop above Golden with summit views of the town and the Continental Divide.
- Beaver Brook Trail — a historic Denver Mountain Parks trail through Clear Creek Canyon, linking three parks along the way.
- Hells Hole — a high basin at treeline in the Mount Evans Wilderness, near Idaho Springs.
- Ben Tyler Trail — an 11.4-mile wilderness trail through the Lost Creek Wilderness, known for its fall aspen color.
Map key: 1) Mount Galbraith Park • 2) Beaver Brook Trail • 3) Hells Hole • 4) Ben Tyler Trail
1. Mount Galbraith Park
Mount Galbraith Park sits directly above Golden, a hiker-only Jefferson County Open Space property built around a 7,260-foot peak with commanding views of Golden, the plains, and the Continental Divide. The park has about five miles of steep, rocky trail, and because bikes and horses aren’t allowed, it stays quieter than the multi-use trails on the other side of town.
Getting There and Practical Info
- Getting there: the Mount Galbraith Trailhead is at 21992 Golden Gate Canyon Road in Golden, per Jefferson County Open Space, roughly 25 to 30 minutes from downtown Denver in light traffic; no transit access.
- Distance and elevation: nearly five miles of trail in the park, per Jefferson County Open Space, with the signature Mt. Galbraith Loop covering 1.6 miles around the peak. Jefferson County gives the summit elevation (7,260 feet) but no elevation-gain figure, so none is quoted here; Visit Golden describes the loop as moderately difficult with elevation gain and calls Nightbird Gulch the park’s steepest, most strenuous trail.
- Difficulty: moderate, with steep, rocky sections near the summit.
- Cost: free, no permit required.
- Time to allow: 2–3 hours for the full loop with time at the overlooks (our estimate, not an official figure).
Who Should Go
This is the easiest on-ramp on this list — close to the city, no permit, and a real summit payoff for a half-day effort. It’s a good choice if you want real elevation gain and a hiker-only trail without committing to a full day. Jefferson County does not publish parking details on its park page, so check before a weekend visit.
2. Beaver Brook Trail
Beaver Brook is one of the oldest trails to come out of Denver’s mountain-parks era. Voters approved the Denver Mountain Parks system in 1912, and the city hired landscape architect Frederick Law Olmsted Jr. to design a network meant to capture “the essence of the Rockies for tourists and locals alike” across roughly 14,000 acres. Beaver Brook was part of that original network, and today it still links three separate mountain parks — Clear Creek Canyon Park, Genesee Mountain Park, and Windy Saddle Park — along a hiker-only route that Visit Golden lists as a 20-mile out-and-back if you hike the whole thing. That figure is roughly twice the trail’s length: the full route runs about 10 miles one way between the Windy Saddle Park trailhead in Golden and Genesee Park. Most visitors do a shorter out-and-back from either end.
Getting There and Practical Info
- Getting there: trailheads are reachable from either Windy Saddle Park (Golden; the Windy Saddle Trailhead is at 1277 Lookout Mountain Road, per Jefferson County Open Space) or Genesee Park off I-70, each roughly 30 to 35 minutes from downtown Denver in light traffic; check a route planner.
- Distance and elevation: the Colorado Mountain Club lists the Windy Saddle Park to Genesee Park route on Beaver Brook Trail at 10 miles with about 2,200 feet of gain, without saying whether that is one way or round trip. User-contributed mapping on Hiking Project measures the full trail at about 10.1 miles one way, so the full out-and-back is about 20 miles, and the same page maps a 7.1-mile out-and-back from the Windy Saddle end with roughly 1,000 feet of gain. These are not official measurements, so treat them as approximate. Jefferson County describes the trail as hikers-only and notes that, because it crosses several jurisdictions, regulations may differ along the way.
- Difficulty: difficult over its full length; individual out-and-back sections can be moderate.
- Cost: free, no permit required.
- Time to allow: a half day for a shorter out-and-back section; a full day if attempting a longer stretch (our estimate, not an official figure).
Is It Worth the Trip?
Yes, especially if you want a hike with some history attached: hikers were already using the Beaver Brook Trail around 1918, in the early years of the Denver Mountain Parks. Because it connects three separate parks, it’s flexible: a short canyon walk from one end, or a full-day trek if you commit to the whole route.
3. Hells Hole
Hells Hole climbs out of Idaho Springs into the Mount Evans Wilderness, a 74,401-acre wilderness area established in 1980, ending in an open high basin around 11,500 feet, at the edge of treeline. It stays far less crowded than the Mount Blue Sky Scenic Byway (the former Mount Evans road) a few miles away, where drivers need a timed-entry ticket from Recreation.gov in season, despite a similar alpine payoff — a glacially carved bowl ringed by talus slopes, with wildflowers filling the lower meadows in July.
Getting There and Practical Info
- Getting there: drive 6.5 miles south of Idaho Springs on Highway 103, then 3 miles up West Chicago Creek Road to the trailhead at the road’s end (Forest Service trail #53; you walk through the Chicago Creek Picnic Area to reach the trailhead, which has vault toilets); roughly an hour from Denver, but check a route planner.
- Distance and elevation: about 8 miles round trip with about 1,900 feet of gain, per the Colorado Mountain Club; the Forest Service lists the trail between 9,650 and 11,522 feet.
- Difficulty: moderate to difficult, with a steady climb through aspen and rocky middle miles.
- Cost: free, but the Mount Evans Wilderness requires a mandatory free, self-issued permit from the trailhead, and standard wilderness rules apply (no bikes, no motorized equipment). The Forest Service says dogs must be on a hand-held leash. The Colorado Mountain Club’s route page lists a parking permit as required, but the Forest Service’s trailhead and trail pages mention no parking fee or permit, so we cannot say which applies; check with the Clear Creek Ranger District before you go.
- Time to allow: 4–6 hours round trip (our estimate, not an official figure).
Hells Hole: weather above treeline
Because the upper basin is open, with little tree cover, afternoon thunderstorms and sudden temperature drops are a real planning factor, not just a formality: the exposed final stretch to the cirque is exactly the kind of terrain where a lightweight rain shell and a set of trekking poles for the loose talus earn their weight.
Worth Knowing Before You Go
This is the most physically demanding hike on this list and the one most affected by weather — start early, watch the sky, and be willing to turn around below the cirque if storms build. It rewards hikers who want a high-alpine payoff without the timed-entry ticket that drivers need for the Mount Blue Sky road.
4. Ben Tyler Trail
Ben Tyler Trail (Forest Service trail #606) runs about 11.4 miles through the Lost Creek Wilderness in Pike National Forest, almost entirely within designated wilderness except for about a mile at each end. The trail’s defining feature is a run of large aspen groves in Ben Tyler Gulch, the result of a 3,000-acre fire in 1903 that cleared the way for the aspens now growing there — they put on some of the Front Range’s best fall color each September, and the trail also passes the remains of an old lumber camp near its far end.
Getting There and Practical Info
- Getting there: the north (Ben Tyler) trailhead is on the south side of US-285, 6.8 miles west of Bailey, with limited parking, roughly 1 to 1.5 hours’ drive southwest of Denver; no transit access. The south trailhead, Rock Creek, is reached from US-285 at Jefferson by County Road 56 (about 6 miles) and then Forest Road 133, a high-clearance road that ends at the trailhead; from there the Colorado Mountain Club says to follow the Colorado Trail about 0.6 miles east to the signed Ben Tyler junction.
- Distance and elevation: 11.4 miles one way (the Colorado Mountain Club’s trail page gives 11.4 in its summary and 12.0 in its details), and Colorado’s state trails database lists an elevation range of 8,271 to 11,672 feet along the trail, which are the route’s lowest and highest points rather than trailhead figures. The Forest Service puts the south end, Rock Creek Trailhead, at about 10,000 feet. We found no source that states the north trailhead’s elevation, and the Colorado Mountain Club page gives inconsistent high points (9,750 feet and a saddle near 11,690 feet), so treat all elevations as approximate.
- Difficulty: difficult, rated “more to most difficult” by the Forest Service.
- Cost: free, but Lost Creek Wilderness rules require a free, self-issued wilderness permit; check Pike-San Isabel National Forest alerts for fire and area closures before you go. The Rock Creek Trailhead page lists a “Willow Fire Area Closure” among its alerts, but the Forest Service alerts page places that closure in the Leadville Ranger District, and the closure notice on Colorado’s trails site names Mount Massive and Mount Elbert; neither source says it covers the Lost Creek Wilderness or the Ben Tyler Trail.
- Time to allow: a full day for an out-and-back into the aspen groves; a shuttle is needed to hike the trail end to end (our estimate, not an official figure).
Who Should Skip It?
Anyone looking for a short afternoon hike should look elsewhere on this list — the payoff aspen groves sit deep enough into the gulch that a meaningful round trip takes most of a day. But for hikers specifically chasing fall color away from the traffic jams at more famous aspen spots, late September here is hard to beat.
One Place We Left Off
Hanging Lake is the obvious candidate for a “hidden gem” hiking list near Denver, and it’s deliberately not on this one. It was a quiet detour off I-70 decades ago, but that description stopped being accurate years back — annual visits grew from about 99,000 in 2014 to roughly 150,000 by 2016, with single-day counts reaching 1,200 hikers, prompting the U.S. Forest Service to introduce a mandatory reservation system capping visits at 615 hikers a day to protect the lake’s fragile travertine formations. A trail that now requires a year-round timed-entry permit ($12 per person, parking included) just to protect itself from crowds isn’t a hidden gem anymore, however photogenic it still is.
Frequently Asked Questions
Do I need a permit for any of these four hikes?
No paid permit or reservation is needed. Unlike Hanging Lake, none of these four trails uses a reservation or timed-entry system. The one thing to plan for is on Hells Hole and the Ben Tyler Trail: the Mount Evans and Lost Creek wilderness areas both require a free, self-issued permit filled out at the trailhead.
Do I need a car to reach these trailheads?
Yes, for all four. None of these trailheads are served by public transit, so a car (your own, rented, or rideshare for the closer ones) is necessary.
Which of these is the best fit for a first high-altitude hike?
Mount Galbraith is the gentlest introduction — close to Denver, well-marked, and shorter than the other three. Hells Hole is the one to build up to once you’re acclimated, since it tops out above 11,500 feet.
What’s the best time of year to visit?
Late June through September covers all four comfortably. Ben Tyler Trail is specifically worth timing for mid-to-late September, when its aspen groves turn; Hells Hole is best in July and August once snow has cleared from the cirque.
Between a hiker-only summit above Golden, a century-old trail linking three historic parks, an alpine basin with no timed-entry system, and an aspen-lined wilderness trail with its own 1903 fire history, these four trails make the case that the Front Range’s best hiking was never only about Rocky Mountain National Park. If you’re planning a broader outdoor-focused trip, our guides to hidden natural wonders near San Diego and hidden natural wonders in Switzerland cover the same instinct — skipping the crowds for something just as scenic — in two very different mountain ranges.
