Loire Valley In 2000, UNESCO added the central part of the Loire River valley to its list of World Heritage Sites. The valley includes historic towns such as Amboise, Angers, Blois, Chinon, Montsoreau, Orléans, Saumur, and Tours. The climate is favorable most of the year, the river often acting as a line of demarcation in France's weather between the northern climate and the southern. The river has a significant effect on the mesoclimate of the region, adding a few degrees of temperature. The climate can be cool with springtime frost while wine harvest months may have rain. Summers are hot; however, influences
Loire of losing its status as the last wild river in France". The reason for this is its sheer length and possibility of extensive navigation, which severely limits the scope of river conservation. The Federation, a member of the IUCN since 1970, has been very important in the campaign to save the Loire river system from development. In 1986, the French government, the Loire-Brittany Water Agency and the EPALA settled an agreement on flood prevention and water storage programme in the basin, involving construction of four large dams, one on the Loire itself and three on the Allier and Cher. The