This 200 acre landslide has delivered sediment via massive debris flows throughout the literary and photographic record. Through several processes the landslide delivers a continual supply of fine sediment to the South Fork Stillaguamish river (approximately 2,000,000m3 to date, Collins 1997). According to Williams (1975) The major limiting factor (to salmon utilization) in the South Fork system is the massive earth slide located on the right bank approximately RM 48.7. This causes continual heavy silt loading to spawning beds during periods of heavy runoff¿ containment of the slide would improve all spawning downstream. The lower South Fork is home to chinook, coho, pink, chum, steelhead and bull-trout. This project would restrict the river from moving towards the toe of the slide (using a large wood revetment), therefore reducing the transport of fine sediment downstream to salmon spawning beds.
