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Weeks Falls

Olallie State Park

Alpine Lakes Wilderness, Washington

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Weeks Falls

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  • Broad trail from the parking lot en route to Weeks Falls.- Weeks Falls
  • Old-growth in Olallie State Park.- Weeks Falls
  • Lady fern (Athyrium filix-femina) along the trail en route to Weeks Falls.- Weeks Falls
  • Broad trail from the parking lot en route to Weeks Falls.- Weeks Falls
  • Old-growth Sitka spruce (Picea sitchensis) in Olallie State Park near Weeks Falls.- Weeks Falls
  • Old-growth western redcedar (Thuja plicata) in Olallie State Park near Weeks Falls.- Weeks Falls
  • Weeks Falls Hydroelectric Project.- Weeks Falls
  • The Snoqualmie River plunges into Weeks Falls in Olallie State Park.- Weeks Falls
  • The Snoqualmie River plunges into Weeks Falls in Olallie State Park.- Weeks Falls
  • The Snoqualmie River plunges into Weeks Falls in Olallie State Park.- Weeks Falls
Overview + Weather
Pros: 
Short walk to a 77-foot cascade. Old-growth forest, including giant Sitka spruce.
Cons: 
Swimming not permitted at the base of the falls.
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Region:
Alpine Lakes Wilderness, WA
Congestion: 
High
Pets allowed: 
Yes
Parking Pass: 
Washington Discovery Pass
Preferable Season(s):
Winter, Spring
Current Local Weather:
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Adventure Description

Adventure Description

Team

Rambling down 77 feet of granite, the South Fork of the Snoqualmie River creates Weeks Falls on the eastern end of 2,500-acre Olallie State Park and on the opposite side of the park from Twin Falls.

From the day use parking lot, follow the river upstream for 0.4 miles along a relatively broad trail passing by thimbleberry, lady fern, old-growth western redcedar, and a relatively out-of-place giant Sitka spruce (which tend to grow more dominantly closer to the Pacific Ocean) to quickly reach Weeks Falls. En route you'll also pass the discharge point of Weeks Falls Hydroeletric Plant, a maximum 5-megawatt powerstation, which at its capacity has the ability to power roughly 800 homes in Kings County. 

Note: Swimming below the falls adjacent to the hydroelectric plant is not permitted. You'll enjoy swimming and relaxing on the riverbanks near the main parking lot at Snoqualmie River Picnic Area.

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Location + Directions

Nearby Camping + Lodging

(16 within a 30 mile radius)

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(122 within a 30 mile radius)

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