Sierra Morena
geographical name
Sierra Mo·re·na
mō-ˈrā-nä 
mountain range in southwestern Spain between the Guadiana and Guadalquivir rivers; highest peak is Estrella at 4339 feet (1322 meters) high
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“Sierra Morena.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Sierra%20Morena. Accessed 31 Oct. 2025.
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