Fern Falls
Colorado • Rocky Mountain National Park
By Armen Suny · Last verified Mar 2026
Photo Credits (5)
Difficulty
Moderate
Trail Length
2.4 miles
Trail Type
Out And Back
Elevation Gain
350 ft
About Fern Falls
Fern Falls is a picturesque waterfall located in Rocky Mountain National Park, Colorado. It is a cascading waterfall surrounded by lush greenery, making it a popular destination for hikers and nature enthusiasts.
The Setting
Fern Falls sits at 8,812 feet within Rocky Mountain National Park, fed by the Colorado River, in the high alpine of Colorado.
Trail & Hike Details
The Approach
The moderate 2.4-mile out-and-back trail gains 350 feet of elevation on the way to the falls.
Trail Description
The trail to Fern Falls begins at the Fern Lake Trailhead and follows a well-maintained path through dense forests and alongside the Big Thompson River. The trail features gradual elevation gain and offers stunning views of the surrounding mountains and meadows. Fern Falls is located approximately 3.8 miles from the trailhead.
What to Expect
Visitors can expect a moderately challenging hike with rewarding views of the waterfall. The trail is well-marked and passes through scenic landscapes, including aspen groves and pine forests. Fern Falls is a cascading waterfall that is particularly beautiful in the spring and early summer when water flow is at its peak.
Accessibility
The trail is not wheelchair accessible. Uneven terrain and elevation changes require steady footing.
Frequently Asked Questions
🐶 Are Dogs Allowed at Fern Falls?
❌ Dogs are not allowed
Are There Any Fees or Permits Required?
🤑 Fee: $30.00
Permit required
A timed entry reservation is required to access Rocky Mountain National Park during peak season (May through October).
🏊 Is There Swimming at Fern Falls?
❌ Swimming is not allowed
When to Visit
The best time to visit Fern Falls is in late spring or early summer when the snowmelt creates a strong flow in the waterfall. Fall is also a great time to visit for colorful foliage.
Seasonal Access
The best time to visit is Spring, Summer, and Fall. Access roads and trails may close during winter due to snow. Check with Rocky Mountain National Park for current conditions.
Safety Information
Water temperature is currently 45°F — cold enough to cause numbness quickly. Avoid prolonged water contact and use caution near the falls.
Be cautious of slippery rocks near the waterfall. Weather can change rapidly in the mountains, so be prepared for sudden rain or snow. Carry bear spray and know how to use it, as black bears are present in the area.
Current Water Conditions
98 ft³/s
Current discharge — how much water is flowing
About average for this time of year
Based on 72 years of record
5.10 ft
Water depth at gauge
45°F
Very coldExpect numbness within minutes
7-Day Discharge Trend
What does this mean for your visit?
Flow is about average for this time of year. Water temperature is very cold at 45 degrees F, expect numbness within minutes. Expect very murky conditions with low visibility and excellent dissolved oxygen levels. PH is normal at 7.5 and mineral content is typical.
Water Quality
Dissolved Oxygen
ExcellentSupports aquatic life
pH
NormalWithin healthy range (6.5-8.5)
Water Clarity
Slightly cloudyMinor sediment present
Conductance
Dissolved minerals in the water
About This Gauge
This gauge is on a nearby waterway and may not reflect exact conditions at the falls.
Weather Forecast
Location & Access
Getting There
Fern Falls is accessed via the Fern Lake Trailhead in Rocky Mountain National Park. The trailhead is located near Moraine Park, and visitors must enter the park through one of its main entrances.
Get Directions on Google MapsParking
Parking is available at the Fern Lake Trailhead, but it can fill up quickly, especially during peak seasons. Arrive early to secure a spot.
Elevation
8812 feet above sea level
Coordinates
40.347418° N, -105.667760° W
Land Management
Managed by NPS
Visitor Tips & Gear
Start your hike early to avoid crowds and secure parking. Bring plenty of water, snacks, and layers, as weather in the mountains can change quickly. Be prepared for potential snow or icy conditions if visiting in late fall or early spring.
This trail sits at 8,812 ft — the air is noticeably thinner
High AltitudeSome visitors experience headaches, fatigue, or shortness of breath at this elevation. Take it slow, stay hydrated, and consider supplemental oxygen if you're coming from a lower altitude.
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Coppertone Sport SPF 50 Sunscreen
UV intensity jumps ~4% per 1,000 ft — at this elevation you can burn in half the time.
Sun Bum SPF 30 Lip Balm (3-Pack)
Lips have almost no natural UV protection and burn fast in thin, dry mountain air.
Liquid I.V. Electrolyte Packets
You lose moisture ~2x faster at elevation — electrolytes help you absorb water efficiently.
ROCKNIGHT Polarized UV400 Sunglasses
High-altitude glare off rock and water is intense — UV400 lenses block 99%+ of UVA/UVB.
Boost Oxygen 10L Canister (2-Pack)
Portable supplemental oxygen for quick relief from headaches and shortness of breath.
Altitude Rx OxyBoost Complex
Antioxidant formula designed to support your body's natural altitude acclimation.
As an Amazon Associate, we earn from qualifying purchases.
With 2.4 miles and 350 ft of elevation gain, sturdy boots and trekking poles will help on this moderate trail. Sun exposure on the trail makes good sun protection a must in summer.
America the Beautiful Annual Pass
Covers entrance fees at 2,000+ federal recreation sites — required at most National Parks.
Polarized Sunglasses (Knockaround)
Cuts glare off the water so you actually see the falls — and your photos turn out better too.
Columbia Watertight II Rain Jacket
Packs into its own pocket, seam-sealed, and keeps you dry from spray and surprise rain.
Earth Pak Waterproof Dry Bag
Keeps your phone and gear dry when waterfall mist soaks everything else.
Waterproof Phone Pouch (AiRunTech)
Cheap insurance — take photos right next to the falls without killing your phone.
Timberland Euro Sprint Mid Waterproof
Trusted waterproof boot with premium leather and grippy rubber sole — reliable on rocky, wet trails.
TrailBuddy Trekking Poles
Lightweight aluminum, cork grips, and flip-locks that actually hold — a best-seller for good reason.
Where to Stay
Riversong Inn Retreat
Boulder Brook on Fall River
Murphy's River Lodge
Murphy's Resort
Browse vacation cabins and private rentals nearby
Unique outdoor stays — tents, yurts, and treehouses
Rent a campervan or RV for your waterfall road trip
Some links are affiliate links. We may earn a commission at no extra cost to you.
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Nearby Attractions
Nearby attractions include Fern Lake, The Pool, and Moraine Park. Visitors can also explore other trails in Rocky Mountain National Park.
Wildlife
Wildlife in the area includes elk, mule deer, black bears, and various bird species. Always maintain a safe distance from wildlife.
Cities near Fern Falls
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