- 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 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.
- Thomas Cole (Wikipedia)
Thomas Cole (1 February 1801 – 11 February 1848) was an English-born American artist and the founder of the Hudson River School art movement. Cole is widely regarded as the first significant American landscape painter. He was known for his romantic landscape and history paintings. Influenced by European painters, but with a strong American sensibility, he was prolific throughout his career and worked primarily with oil on canvas. His paintings are typically allegoric and often depict small figures or structures set against moody and evocative natural landscapes. They are usually escapist, framing the New World as a natural eden contrasting with the smog-filled cityscapes of Industrial Revolution-era Britain, in which he grew up. His works, often seen as conservative, criticize the contemporary trends of industrialism, urbanism, and westward expansion.