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.
As mentioned earlier, Spain is the second most mountainous country in Europe. The Pyrenees climb to a peak of 3404m; Sierra Nevada climbs to 3478m, the highest point in Spain; the Cantabrian Mountains get up to 2648m; and there are many more mountains in central Spain.