Swing Rock was a giant boulder that was part of the Snoqualmie
Tribe's legend about their arrival in Snoqualmie Valley. They
believed the giant rock between North Bend and Snoqualmie was the
petrified remains of a rope swing that brought their ancestors to
the area. Early settlers named it Quarry Rock and excavated and
crushed part of it for road building.
Recently, a land swap between the Northwest Railway Museum and
Meadowbrook Farm gave the Farm four acres of commercial property
the Museum owned near the Mount Si Quarry including the remnants of
Swing Rock. In return, the Museum received four acres adjacent to
its tracks that run between North Bend and Snoqualmie. The Museum
intends to build a Railway History Center featuring a
24,000-square-foot exhibition on the land, which abuts the
Museums's Conservation and Restoration Center on the eastern border
of Snoqualmie.
On an unrelated note, if you look east along the road, you'll
notice a gentle rise in the road bed. Underneath is a tunnel which
used to be used by cattle to travel from one side of the road to
the other.