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You searched for: Start Over Decade 1960-1969 Remove constraint Decade: 1960-1969 Institution Oregon State University Remove constraint Institution: Oregon State University Region Spain Remove constraint Region: Spain

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1. Terrace farming, Spain, circa 1965

Terrace farming, Spain, circa 1965

2. Fortress above arch bridge, Spain, circa 1965

Fortress above arch bridge, Spain, circa 1965

3. Cork tree, Spain, circa 1965

Cork tree, Spain, circa 1965

4. Convention to regulate the hydroelectric development of the international sections of the river Duero and its tributaries (with additional protocol) Signed at Lisbon on 16 July 1964

Convention to regulate the hydroelectric development of the international sections of the river Duero and its tributaries (with additional protocol) Signed at Lisbon on 16 July 1964

Description: Treaty basin(s): Douro

5. Agreement regulating the use and development of the water resources of the international reaches of the rivers Miño, Limia, Tajo, Guadiana, and Chanza and of their tributaries (with additional protocol), signed at Madrid

Agreement regulating the use and development of the water resources of the international reaches of the rivers Miño, Limia, Tajo, Guadiana, and Chanza and of their tributaries (with additional protocol), signed at Madrid

Description: Treaty basin(s): Barranco de Raia, Pónsul, Perna Seca, Caya, Cuncos, Aravil, Erjas, Troncoso/Trancoso, Sever, Agueda, Limia, Miño, Guadiana, Chanza, Tajo

6. Old water wheel, Spain, 1961

Old water wheel, Spain, 1961

7. Water pump, Spain, 1961

Water pump, Spain, 1961