Calle de Leizarán
Takes its name from the Leizarán, a Cantabrian river that runs between Navarre and Gipuzkoa down to the Oria.
The name travels from the damp north to one of the highest points in Madrid. The Leizarán rises in the lands of Leiza, in Navarre, and runs some forty kilometres boxed into a valley of steep slopes and dense woodland before giving its waters to the Oria, now in Gipuzkoa. Its banks, a protected biotope, keep the trace of the old ironworks.
Calle de Leizarán belongs to the El Viso colony, a 1930s garden suburb whose streets bear the names of Iberian rivers. Here the currents of the north gather: the walker passes from calle de Urumea to calle de Oria, from calle de Bidasoa to calle de Arga. The whole colony works as a small pocket river atlas, with short streets bearing the names of currents no one has ever seen.