Ribagorza is one of the historical Aragonese counties, collindant with the county of Sobrarbe[?] and the county of Pallars. Its territory was the valleys of the rivers Esera[?], Isabena[?], and Noguera Ribagorzana[?].
The historical capital was Benabarre. Nowadays Barbastro[?] have taken precedence as the main center of the area.
Some notable towns in the area are:
... (21%), and CASA of Spain (13%).
Over the next five years, design work continued, aided by data from the British Aerospace EAP prototype which had first flown in 1986, and ...