Sierra de Aracena and Picos de Aroche Natural Park (Spanish: Parque natural de Sierra de Aracena y Picos de Aroche) is a protected area in the Sierra de Aracena range, part of the Sierra Morena mountain system, Huelva Province, southwestern Spain.
The natural park spreads across 28 municipalities with a population of 41,000 people. Rivers which run through it include the Odiel and Murtigas.[1]