- A lithosphere (from Ancient Greek λίθος (líthos) ‘rocky’, and σφαίρα (sphaíra) ‘sphere’) is the rigid, outermost rocky shell of a terrestrial planet or natural satellite. On Earth, it is composed of the crust and the lithospheric mantle, the topmost portion of the upper mantle that behaves elastically on time scales of up to thousands of years or more. The crust and upper mantle are distinguished on the basis of chemistry and mineralogy.
- Cowlitz County — Thumbnail History (historylink.org)
One of the original counties of Washington Territory, Cowlitz County occupies the lower portion of the Cowlitz River and part of Washington’s shore of the Columbia River. One of the early conventions to form Washington Territory met at Monticello, which later became Longview. Logging and milling have historically been the big part of the county’s economy until the latter part of the twentieth century. A lumber mill led directly to the planned community of Longview, named after lumberman Robert A. Long (1850-1934).