- A volcano is commonly defined as a vent or fissure in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
- Pickering Passage (Wikipedia)
Pickering Passage is a strait, in the southern end of part of Puget Sound in the U.S. state of Washington. Entirely within Mason County, the Pickering Passage separates Hartstine Island from the mainland, and connects Totten Inlet with the north end of Case Inlet.