70157302 - Spring blossoms at the Bradford Island Visitor Center at Bonneville Dam. Columbia River Gorge National Scenic Area. Oregon. USA70359488 - Stairs on side of wall with shadow70401200 - Hoover Dam and Lake Mead. Black Canyon. Colorado River. View from above of the reservoir and hydroelectric dam., Hoover Dam and Lake Mead, USA70247474 - La Almendra dam without water Old abandoned farms Remnants of stone fences of the farms Monleras, province of Salamanca, Castilla y Leon, Spain70130109 - Drought. Sau reservoir, Osona, Barcelona province, Spain70088618 - Hoover dam at Colorado River. Nevada. USA70318148 - San Nicolas Garraitz) island, Lekeitio, Vizcaya Bizkaia), Basque Country, Spain70230752 - El Atazar dam from Cancho de la Cabeza. Madrid province, Spain70230729 - San Juan reservoir. Virgen de la Nueva. Madrid. Spain.70089948 - Grimsel pass, Bernese Oberland. Switzerland70230751 - El Atazar dam from Cancho de la Cabeza. Madrid province, Spain