The narrower part of the Tagus basin lies to the south, and the left-hand tributaries which drain it are almost all mere brooks, dry in summer.
In other parts, as in the Basque country, in Galicia, in the Serrania de Cuenca (between the headwaters of the Tagus and those of the Jiicar), in the Sierra de Albarracin (between the headwaters of the Tagus and those of the Guadalaviar), there are extensive tracts of undulating forest-clad hill country, and almost contiguous to these there are apparently boundless plains, or tracts of level table-land, some almost uninhabitable, and some streaked with irrigation canals and richly cultivatedlike the Rcquena of Valencia.
For these reasons he marched by land; and as the roads north of the Tagus were deemed impassable for guns, while transport and supplies for a large force were also difficult to procure, he sent Sir John Hope, with the artillery, cavalry and reserve ammunition column, south of the river, through Badajoz to Almaraz, to move thence through Talavera, Madrid and the Escurial Pass, involving a considerable detour; while he himself with the infantry, marching by successive divisions, took the shorter roads north of the Tagus through Coimbra and Almeida, and also by Alcantara and Coria to Ciudad Rodrigo and Salamanca.
ALEXANDER, tagus or despot of Pherae in Thessaly, ruled from 369 to 358 B.C. His tyranny caused the Aleuadae of Larissa to invoke the aid of Alexander II.
Thence the Tagus flows at first northwestwards, but, after receiving the Gallo on the right, it flows west, and then south-west or west-south-west, which is its general direction for the rest of its course.
Between the Douro and Tagus the Vouga rises in the Serra da Lapa and reaches the sea through the lagoon of Aveiro; the Mondego flows north-east through a long ravine in the Serra da Estrella, and then bends back so as to flow west-south-west.
Under Fernando, they advanced to of the the banks of the Tagus in the south, and into Valencia Christian on the south-east.
Gold was washed from some of the Portuguese rivers before the Christian era, and among the Romans the auriferous sands of the Tagus were proverbially famous; it is, however, extremely improbable that large quantities of gold were ever obtained in this region, although small deposits of alluvial gold may still be found in the valleys of the Tagus and Mondego.
Between the Tagus and Cape St Vincent the principal rivers are the Sado, which is formed by the junction of several lesser streams and flows north-west to the port of Setubal; and the Mira, which takes a similar direction from its headwaters south of Monte Vigia to the port of Villa Nova de Milfontes.
Long, stretching over heights north of Lisbon, from the Tagus to the sea.