Costa Rican Central Valley - Geographic Dimensions

Geographic Dimensions

The Central Valley is commonly considered to extend from the city of San Ramón in Alajuela in the west, to the city of Paraíso in Cartago in the east. The mountains north of the valley are part of the Central Range. There are four main volcanoes north of the valley, namely Poás, Barva, Irazú and Turrialba. The mountains that round the plateau to the south form part of the Talamanca Range. A smaller range, the Cerros de la Carpintera, which runs from north to south roughly along the border between the provinces of San José and Cartago, divides the valley into two sections. The western section is normally referred to as "Western Valley" or "Central Valley" proper and the eastern section is referred to as the Eastern Valley or "Valle del Guarco". This smaller range also impacts the weather and ecosystems of the two subregions, with the Western Valley significantly influenced by the weather patterns of Costa Rica's Pacific coast and the Eastern Valley influenced by the Caribbean coast weather.