- This page from Wilderness Connect of the Univerity of Montana has visitor information and links to high-quality interactive maps.
- The United States Congress designated the Alpine Lakes Wilderness in 1976 and it now has a total of 414,322 acres. All of this Wilderness is located in Washington and is managed by the Forest Service.
- Francium (Wikipedia)
Francium is a chemical element; it has symbol Fr and atomic number 87. It is extremely radioactive; its most stable isotope, francium-223 (originally called actinium K after the natural decay chain in which it appears), has a half-life of only 22 minutes. It is the second-most electropositive element, behind only caesium, and is the second rarest naturally occurring element (after astatine). Francium’s isotopes decay quickly into astatine, radium, and radon. The electronic structure of a francium atom is [Rn] 7s1; thus, the element is classed as an alkali metal.