- Big Valley Wildlife Area Unit (wdfw.wa.gov)
The Big Valley Unit includes trails maintained by Methow Trails, for winter skiing/snowshoeing, and summer horseback riding, biking, and hiking. The main part of the unit is mostly flat with little elevation change. The unit was purchased primarily to protect endangered fisheries riparian habitat along the Methow River, but is also in the migratory path of deer moving north and south between winter ranges in the lower valley and summer ranges in the upper Methow Valley and Pasayten Wilderness.
- Magnesium (Wikipedia)
Magnesium is a chemical element; it has symbol Mg and atomic number 12. It is a shiny gray metal having a low density, low melting point and high chemical reactivity. Like the other alkaline earth metals (group 2 of the periodic table) it occurs naturally only in combination with other elements and it almost always has an oxidation state of +2. It reacts readily with air to form a thin passivation coating of magnesium oxide that inhibits further corrosion of the metal. The free metal burns with a brilliant-white light. The metal is obtained mainly by electrolysis of magnesium salts obtained from brine. It is less dense than aluminium and is used primarily as a component in strong and lightweight alloys that contain aluminium.