Updated July 2026
Coal Creek Falls
A modest seasonal waterfall that cascades over moss-covered rock in Cougar Mountain Regional Wildland Park near Issaquah. It flows best in the wet season and is a short forested hike from the trailhead.
Before you go
Waterfalls are hazardous by nature — wet rock, cold water, and unstable edges — and flow varies enormously with season and recent rain. Trail figures here describe the route as documented, not conditions today. Check King County Parks (Cougar Mountain Regional Wildland Park) for closures and current conditions, and confirm land status before setting out.
Graded lakes within 25 miles
- BLake Sammamish · King County · 5.4 mi
- AAngle Lake · King County · 10.4 mi
- DLake Beecher · Snohomish County · 22.1 mi
- DDebra Jane Lake · Pierce County · 23.1 mi
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Frequently Asked Questions
Coal Creek Falls drops about 28 feet. That makes it the 567th-tallest documented waterfall in this inventory, taller than roughly 16% of the falls listed here. Height comes from published land-manager and survey records, not from our own measurement.
The Coal Creek Falls Trail reaches it about 2.2 miles (loop) with roughly 475 feet of elevation gain, rated easy. The nearest town is Newcastle. That describes the route as documented, not conditions on the day — check with King County Parks (Cougar Mountain Regional Wildland Park) for closures and current conditions.
winter. Waterfall flow swings enormously with snowmelt and recent rain, so a fall that roars in spring can be a trickle by late summer.
More Washington waterfalls
- Big Creek Falls · 125 ft
- Boulder River Falls (Feature Show Falls) · 120 ft
- Bridal Veil Falls
- Christine Falls · 69 ft
- Comet Falls · 320 ft
- Curly Creek Falls · 86 ft
- Falls Creek Falls · 335 ft
- Franklin Falls · 135 ft
Sources
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