page_title: Dolores River
hierarchical_section_title: Dolores River
caption_attribution_description: English: Map of the Dolores River drainage basin in Colorado and Utah, USA. Made using USGS data.
context_page_description: The Dolores River is a tributary of the Colorado River, approximately 241 miles long, in the U.S. states of Colorado and Utah. The river drains a rugged and arid region of the Colorado Plateau west of the San Juan Mountains. Its name derives from the Spanish El Rio de Nuestra Señora de Dolores, River of Our Lady of Sorrows. The river was explored and possibly named by Juan Maria Antonio Rivera during a 1765 expedition from Santa Fe.
  The mean annual flow of the Dolores prior to damming was approximately 1,200 cu ft/s, but due to diversions it has been reduced to about 600 cu ft/s.
context_section_description: The Dolores River is a tributary of the Colorado River, approximately 241 miles (388 km) long, in the U.S. states of Colorado and Utah. The river drains a rugged and arid region of the Colorado Plateau west of the San Juan Mountains. Its name derives from the Spanish El Rio de Nuestra Señora de Dolores, River of Our Lady of Sorrows. The river was explored and possibly named by Juan Maria Antonio Rivera during a 1765 expedition from Santa Fe.
  The mean annual flow of the Dolores prior to damming was approximately 1,200 cu ft/s (34 m³/s), but due to diversions it has been reduced to about 600 cu ft/s (17 m³/s).
caption: The Dolores River watershed
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