'hollow cedar tree')[1] is a designated National Wild and Scenic River in Northern Washington which provides a spawning and rearing habitat for summer and fall chinook, coho, chum and pink salmon, as well as steelhead and bull trout.
Puget Sound Chinook, steelhead and bull trout are listed under the Endangered Species Act.
Illabot Creek also supports the highest density of chum and pink salmon in the Skagit River watershed.
[3] Illabot Creek begins at the 7,500 feet elevation in the Mount Baker–Snoqualmie National Forest and enters the Skagit River in Rockport, Washington.
[6] 262 acres (106 ha) of property around the creek was acquired in 2017 by The Nature Conservancy and placed in the Skagit Land Trust.