Using simple methods like tank banks, low-flow showerheads and faucet aerators you can retrofit your home for under$50. By using water-saving features you can reduce your in-home water use by 35%. This means the average household, which uses 130,000 gallons per year, coulod save 44,00 gallons of water per year.
Specifically, Serra Da Estrela ['Mountain Range of the Star'] is the highest mountain on mainland Portugal. At its highest point, it measures 6,539 feet/1993 meters above sea level.
The highest peaks in Europe (outside of the Caucasus mountains) are located in the Alps. Mont Blanc (4810 meters), Dufourspitze (4634 meters) and the world famous Matterhorn (4478 meters) are official and well known alpine four-thousanders. Many areas of the Alps are covered by eternal snow and ice. The largest glaciers are located in the Valais and Bernese Alps of Switzerland. The Aletsch Glacier with its 23 kilometers length and 900 meters depth is now a UNESCO World Heritage site.