Tied up in the Whatcom Creek Waterway (Adjacent Squalicum Waterway).
Hamilton Marine Construction tug (Skagway/Alaska)
MMSI:367706060
Call sign: WD15192

The following extracted from "tugboatinformation" web site:

Built in 1957, by the Weldcraft Steel and Marine Company of Bellingham, Washington as the Heidi H. for the Halvorsen Towing Company Incorporated of Ketchikan, Alaska.

The tug was later acquired by the Washington Tug and Barge Company of Seattle, Washington. Where she was renamed as the Skookum.

In 1979, the Washington Tug and Barge Company was acquired by the Knappton Towboat Company of Astoria, Oregon. Where the tug was renamed as the Tacoma.

In 1988, the Knappton Towboat Company was rebranded as the Brix Maritime Company of Seattle, Washington. Where the tug retained her name.

In 1993, the Brix Maritime Company was acquired by Foss Maritime of Seattle, Washington. Where the tug retained her name.

In 1994, she was acquired by Campbell Towing Incorporated of Wrangell, Alaska. Where the tug was renamed as the Tara C.

In 1999, the tug was acquired by an individual named Robert Johnson of San Jose, California. Where she was renamed as the Defiant.

In 2009, she was acquired by the Knutson Towboat Company of Coos Bay, Oregon. Where the tug retained her name.

In 2012, the tug was phased out of active service. And, was "laid-up" at Coos Bay, Oregon. Powered by a single Cooper Bessemer Diesel engines. She was a single screw tug, rated at 900 horsepower.
(Kyle Stubbs)

www.tugboatinformation.com/tug.cfm?id=8393