Llegada del ferrocarril Zafra-Huelva a Calañas Historical milestone · Calañas, El Andévalo, Huelva Image of Calañas, not of the place itself. The Zafra-Huelva railway line, key to the region's mineral exports, was opened through Calañas in 1886. 1886 Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Calañas