- In 1925, when the timberland holdings of the Puget Mill Company were sold to an eastern lumber company, the Blue Ridge community in Seattle’s northwest corner became a possibility. William E. Boeing (1881-1956), lumberman, mining entrepreneur, and airplane builder, bought up most of the company’s land overlooking Puget Sound north of the city limits to Richmond Beach. Soon the Douglas fir and cedar stands would be sacrificed for the development of the exclusive communities of Innis Arden and Blue Ridge. Today (2001), 450 homes sit on a 200-acre cul-de-sac that abuts Carkeek Park, whose western facing slopes offer spectacular views of the Puget Sound area. This acreage, bounded on the east by 12th Avenue NW and on the south by NW 100th and NW 105th streets, constitutes the upscale, covenanted community of Blue Ridge.
- St. Peter Sandstone (Wikipedia)
The St. Peter Sandstone is an Ordovician geological formation. It belongs to the Chazyan stage of the Champlainian series in North American regional stratigraphy, equivalent to the late Darriwilian global stage. This sandstone originated as a sheet of sand in clear, shallow water near the shore of a Paleozoic sea and consists of fine-to-medium-size, well-rounded quartz grains with frosted surfaces. The extent of the formation spans north–south from Minnesota to Arkansas and east–west from Illinois into Nebraska and South Dakota. The formation was named by David Dale Owen (1847) after the Minnesota River, then known as the St. Peter River. The type locality is at the confluence of the Mississippi and Minnesota Rivers near Fort Snelling, Minnesota. In eastern Missouri, the stone consists of quartz sand that is 99.44% silica.