Columbia River Basalt Group Stretches from Oregon to Idaho (usgs.gov)
The corresponding Wikipedia article incorporates public domain material from this USGS article.
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The thick, layered lava flows of the CRBG erupted as flood basalts, which originate as some of the most highly effusive eruptions in the world. The CRBG sequence a classic example of flood basalt activity that erupted more than 350 lava flows from about 16.7 Ma to 5.5 Ma. The eruptions originated from a series of generally north-northwest-trending linear fissures, ranging from tens to hundreds of kilometers in length, located along the Washington/Oregon/Idaho border. The magma that fed these massive eruptions may have come from a plume-like upwelling from the mantle called a hot spot. Since the time of the CRBG eruptions, the North American plate has moved in a west-southwestwardly motion, and that hot spot is now believed to reside beneath Yellowstone volcano in northwest Wyoming.
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Star Tales - Pavo (ianridpath.com)The peacock is one of the 12 figures introduced into the southern skies at the end of the 16th century from the observations by the Dutch navigators Pieter Dirkszoon Keyser and Frederick de Houtman. Pavo seemingly represents not the common blue, or Indian, peacock commonly seen in parks but its larger, more colourful, and more aggressive cousin, the Java green peacock which Keyser and de Houtman would have encountered in the East Indies. Pavo was first depicted in 1598 on a globe by Petrus Plancius and first appeared in print in 1603 on the Uranometria atlas of Johann Bayer. As visualized by Plancius and Bayer the peacock had a more expansive tail, but its feathers were later trimmed by Lacaille to make room for his own invention Telescopium to the north.
