Irazú Volcano National Park
Encyclopedia
Irazú Volcano National Park, or in Spanish
Spanish language
Spanish , also known as Castilian , is a Romance language in the Ibero-Romance group that evolved from several languages and dialects in central-northern Iberia around the 9th century and gradually spread with the expansion of the Kingdom of Castile into central and southern Iberia during the...

 the , is a National Park
National park
A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or owns. Although individual nations designate their own national parks differently A national park is a reserve of natural, semi-natural, or developed land that a sovereign state declares or...

 in the Central Volcanic Conservation Area
Central Volcanic Conservation Area
Central Volcanic Conservation Area is an administrative area which is managed by SINAC for the purposes of conservation in the central part of Costa Rica, notably the volcanic areas of the Cordillera Central...

 of Costa Rica
Costa Rica
Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

 that encompasses the area around the Irazú Volcano
Irazú Volcano
The Irazú Volcano is an active volcano in Costa Rica, situated in the Cordillera Central close to the city of Cartago.The name could come from either the combination of "ara" and "tzu" or a corruption of Iztarú, which was the name of an indigenous village on the flanks of the volcano...

 in Cartago Province
Cartago Province
Cartago is a province of Costa Rica. It is located in the central part of the country. Bordering provinces are Limón to the east and San José to the west. The capital is Cartago and it was formerly the capital city of Costa Rica until 1823 when the capital was changed to San Jose...

 which incorporates what used to be the Ruben Torres Rojas Forest Reserve now called the Prusia Forest Reserve. The volcano is still active although the last major eruptions were between 1963 and 1965, with occasional minor eruptions and some small lava flows since that time.

The park is the site of a reforestation project to restore the area which was destroyed by the eruptions. The forest is made up of conifers and other exotic and native species and also a native forest consisting mainly of oaks and alder, protecting the watershed of the Reventado River.

The Crater Principal lake has an unusual greenish yellow coloring caused by rainfall dissolving the minerals along the craters walls. It has also been known to change colour to rust-red depending on the minerals present. The inactive, dry Diego de la Haya crater sits just up to the right of the Crater Principal and is filled with volcanic ash.

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