La provincia marítima de Segura Historical milestone · Orcera, Sierra de Segura, Jaén Image of Orcera, not of the place itself. In 1748 the maritime province of Segura was created, with its capital at Orcera, devoted to timber production for the Navy; Orcera separated from Segura de la Sierra in 1837. Photo: Jesustorre (CC BY-SA 4.0) What to see and do in Orcera