Friedrich Ahlfeld

Friedrich Adolf Ahlfeld (; ; October 6, 1892 – January 9, 1982), also known as Federico Ahlfeld, was a German and Bolivian geologist and mining engineer. He spent most of his career in Bolivia, where he compiled the first geological and mineral-deposit maps of the country and published extensively on its geology and mineral deposits, leading him to be widely regarded as the "father of Bolivian geology".

Following the nationalization of the Bolivian mining industry, Ahlfeld worked from 1953 to 1954 as a consultant to the José Lippeheide mining company in the Basque region of Spain, where in 1954 he published his monograph on the mineral deposits of Bolivia as well as a paper on the tungsten deposits of Spain.He returned to Bolivia the next year as a consulting geologist to several organizations, including the United Nations (1956–1960) and the German Geological Mission in Bolivia (1959–1963). He was professor of geology and mineralogy at the University of San Andrés in La Paz from 1956 to 1960, honorary professor at the Tomás Frías University in Potosí and at the Bolivian Technological Institute in La Paz (1963), and served as chief of the Bolivian Geological Survey (GEOBOL). He made his final visit to Germany in 1960 and traveled to Switzerland in 1961. Las especies minerales de la República Argentina (with V. Angelelli, 1948) Los yacimientos minerales de Bolivia (1954) Las especies minerales de Bolivia (with M. Reyes, 1955) Zinn und Wolfram (1958) Los yacimientos minerales y de hidrocarburos de Bolivia (with A. Schneider-Scherbina, 1964) Geografía física de Bolivia (1968)