Global Volcanism Program | Image GVP-07428

The Loma San Juan peak lies along the northern crater rim of Laguna de Alegría, a crater lake at the summit of Tecapa. Geothermal features are active along the rim of the crater lake and an area of hydrothermally altered clay containing up to 45% sulfur is found nearby. Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).

The Loma San Juan peak lies along the northern crater rim of Laguna de Alegría, a crater lake at the summit of Tecapa. Geothermal features are active along the rim of the crater lake and an area of hydrothermally altered clay containing up to 45% sulfur is found nearby.

Photo by Giuseppina Kysar, 1999 (Smithsonian Institution).

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Keywords: crater | crater lake

Tecapa