Lake Washington steamboats and ferries sternwheeler "Lena C. Gray" was built in Seattle, and operated on Lake Washington most of the time, towing barges. In about 1886, Edward F. Lee established a shipyard on the west side Lake Washington. The Lee yard is believed to have built the following ships that worked Lake Washington and Puget Sound: the small steam scow "Squak", "Laura Maud", "Elfin", "Hattie Hansen" (also known as "Sechelt"), and "Mist". Other early steamboats on the lake were "Kirkland" and "Mary Kraft". G.V. Johnson also built a shipyard on the lake in 1888, and from it launched, among others, the steamers "L.T. Haas",
Puget Sound faults Lowland. In particular, to the southeast of Mount St. Helens and Mount Rainier they reflect a regional pattern of NNW oriented faulting, including the Entiat Fault in the North Cascades and the Portland Hills and related faults around Portland (see QFFDB fault map). Yet the SHZ and WRZ may be integral to the regional geology of Puget Sound, possibly revealing some deep and significant facets, and may also present significant seismic hazard. The WRZ and SHZ are associated with the "southern Washington Cascades conductor" (SWCC), a formation of enhanced electrical conductivity lying roughly between Riffe Lake and Mounts St. Helens,