Subdivisions. The Ordovician is the second period of the Paleozoic era. The Ordovician began after the end of a series of extinction events known as the Ordovician-Silurian extinction events which ended around 488 mya.
As a state highpointer, Humphrey's Peak in Arizona was on my bucket list. The trailhead was easy to find. The trail itself was not well maintained and rather rocky, which wasn't too bad going up, but required a lot of caution descending to protect your knees.
Show Low is a city in Navajo County, Arizona, United States. It lies on the Mogollon Rim in east central Arizona, at an elevation of 6,400 feet (1,951 m). The city was established in 1870 and incorporated in 1953.