TOLOSA, a town of Spain, in the province of Biscay, and capital of Guipuscoa. It is not large, but it is the capital of the province. It is seated in a pleasant valley, between two rivers, Araxes and Oria; over which there are two handsome bridges, and near them are several natural cascades. W. Long. 2. 3. N. Lat. 43. 12.