- Glacier Peak Wilderness (wilderness.net)
Glacier Peak Wilderness, which shares its northern border with North Cascades National Park, has few equals in terms of sheer ruggedness. Glacier Peak, the highest summit in the area at 10,541 feet, is more remote than any of the state’s other famous old volcanoes…
- Polygon (Wikipedia)
In geometry, a polygon (/ˈpɒlɪɡɒn/) is a plane figure made up of line segments connected to form a closed polygonal chain.