- Igneous rock (Wikipedia)
Igneous rock (igneous from Latin igneus ‘fiery’), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava.
United States Forest Service
- Mount Pilchuck (Wikipedia)
Mount Pilchuck (Lushootseed: bəlalgʷəʔ) is a mountain located in Snohomish County, Washington. It is 37 miles (60 km) northeast of Seattle. It is part of the Cascade Range.