- Washington State Route 409 (Wikipedia)
State Route 409 (SR 409) is a short Washington state highway in Wahkiakum County. The highway runs north from the Wahkiakum County Ferry on Puget Island to SR 4 in the county seat of Cathlamet over a distance of 3.84 miles (6.18 km). The route connects Westport, Oregon, which is served by the county ferry, and Cathlamet. The highway was referred to as Secondary State Highway 12F (SSH 12F) from 1943 until 1964.
- Pennsylvanian (geology) (Wikipedia)
The Pennsylvanian (/ˌpɛnsəlˈveɪni.ən/ pen-səl-VAYN-i-ən, also known as Upper Carboniferous or Late Carboniferous) is, on the ICS geologic timescale, the younger of two subperiods (or upper of two subsystems) of the Carboniferous Period. It lasted from roughly 323.2 million years ago to 298.9 million years ago. As with most other geochronologic units, the rock beds that define the Pennsylvanian are well identified, but the exact date of the start and end are uncertain by a few hundred thousand years. The Pennsylvanian is named after the U.S. state of Pennsylvania, where the coal-producing beds of this age are widespread.