Upper Foss River Falls
King County, Washington
Your visit at a glance
- Waterfall height
- 337 ft (102.7 m)
- Location
- King County, Washington
- Access status
- Approach and parking unconfirmed
- The walk
- Walking distance not confirmed
- Ground & access
- The firsthand report describes scrambling for middle-tier views and warns against crossing the river to see the bottom. No developed or officially sanctioned approach is established.
The waterfall survey documents this cascade below Delta Lake. Aaron’s Waterfall World describes an informal path continuing about half a mile beyond Lower Foss River Falls, but calls the overall journey very difficult; developed access and the complete starting route remain unconfirmed.
Plan your visit
Difficult informal continuation beyond Lower Foss River Falls
The reviewed source does not establish a measured route from parking to this waterfall.
The firsthand report describes scrambling for middle-tier views and warns against crossing the river to see the bottom. No developed or officially sanctioned approach is established.
Where to start
A permitted parking location for visiting this waterfall has not been confirmed.
Timing & water
The survey reports year-round water, with lower volume from spring into autumn.
Before you go
Fees, permits and reservation requirements for this visit have not been confirmed; check with the land manager.
Visitor informationVisit sources
More waterfalls nearby
Within 40 straight-line miles. Road and trail distances will differ.
- Lower Foss River FallsWaterfall identity documented; visitor approach unresolved251 ft (76.5 m) · King County, WA0.4 miN
- Big Heart FallsWaterfall viewing approach unconfirmed1,262 ft (384.7 m) · King County, WA1.0 miS
- Lower Copper Falls46 ft (14 m) · King County, WA1.0 miN
- Middle Copper Falls49 ft (15 m) · King County, WA1.0 miN
- Upper Copper FallsTrail connection supported; precise viewing point and distance unconfirmed39 ft (12 m) · King County, WA1.0 miN
- Angeline FallsDistant viewing route identified; precise sighting point unverified424 ft (129.2 m) · King County, WA1.0 miS
- Copper Lake FallsResearched visit notes131 ft (40 m) · King County, WA1.1 miNW
- Malachite FallsResearched visit notes600 ft (182.9 m) · King County, WA1.2 miNW
- Sunray Falls394 ft (120 m) · King County, WA2.3 miN