Chasm Falls is a 25-foot waterfall cascading down Fall River within Rocky Mountain National Park. A beautiful scenic hike up Old Fall River Road with dramatic rock formations and high peak views.


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We started our hike at Alluvial Fan Parking area because the gate to Endovalley (summer parking) was closed. However, the gate opened for the summer season as we hiked back down. It’s May 27th, the beginning day for timed entry reservations.

Adding the extra mile to reach Old Fall River Road was a pleasant walk in the early morning hours. Old Fall River Road was gated also which made for a car-free experience!

Old Fall River Road is a pretty steady incline hiking yet the views kept getting better and better. Lots of Moose droppings along the way but never a sighting of one. The must like the road also.
Long before reaching the falls I can hear it. But it’s still a couple of switchbacks up the road to find it!

My favorite outerwear for keeping warm, which I carry in my pack even in summer is > Patagonia Nano Puff Vest. Stuffs easily & in Colorado’s high country is a necessity.


A sign (finally) and suddenly we are here. Getting down to the lookout was downhill, fun, rocky, and well established.

Love how the park has these areas of wilderness beauty.

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Cascading water gets louder and louder as we approach the falls. Hard to capture in photos but it was more spectacular than I expected. Spring runoff in its glory!

Nice early morning or ending of your day hike. You can drive here when Old Fall River Road is open if you prefer. Check the Rocky Mountain NP website for road openings. Note: minimal parking at the waterfall.

Six Moon Hiking Umbrella – Lightweight. Highly recommend!

Hiker Hunger Trekking Poles – I use mine for snowshoeing and hiking.

The Essential Guide – Hiking Rocky Mountain National Park


West Alluvial Fan Trailhead

3.5 miles out & back

Endovalley Parking (summer)

2.5 miles out & back

Rated: moderate

Family Friendly

Located: > Rocky Mountain National Park

> Info Shuttle Service

> Info Timed Permits & Reservations

Restroom at Trailhead


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