There is more than one meaning of Huelva discussed in the 1911 Encyclopedia.
Andalusia was divided in 1833 into the eight provinces of Almeria, Cadiz, Cordova, Granada, Jaen, Huelva, Malaga and Seville, which are described in separate articles.
Among the best-known deposits of this character are those in the Huelva district, in the south-west of Spain, including the mines of Rio Tinto, Tharsis, Calanas, &c.; with those of San Domingos in Portugal.
By Seville and Huelva, and W.
The main line of the Madrid-Lisbon railway passes through Villanueva de la Serena, Merida and Badajoz; at Merida it is joined by the railways going north to Caceres and south to Zafra, where the lines from Huelva and Seville unite.