- East Channel Railroad Bridge, Minneapolis, MN (johnweeks.com)
The Saint Paul and Pacific Railroad built the first bridge across the Mississippi River in the Twin Cities area at this location. The bridge opened May 1, 1867. The complete river crossings consists of two spans, one over the main channel of the Mississippi River, and this bridge over the smaller east channel of the Mississippi River. The land between the two river channels is known as Nicollet Island.
- Mariana Plate (Wikipedia)
The Mariana Plate is a micro tectonic plate located west of the Mariana Trench which forms the basement of the Mariana Islands which form part of the Izu–Bonin–Mariana Arc. It is separated from the Philippine Sea Plate to the west by a divergent boundary with numerous transform fault offsets. The boundary between the Mariana and the Pacific Plate to the east is a subduction zone with the Pacific Plate subducting beneath the Mariana. This eastern subduction is divided into the Mariana Trench, which forms the southeastern boundary, and the Izu–Ogasawara Trench the northeastern boundary. The subduction plate motion is responsible for the shape of the Mariana plate and back arc.