Landscape of the Sierra de Algairén in Tosos Nature · Tosos, Campo de Cariñena, Zaragoza Image of Tosos, not of the place itself. Tosos sits on the left bank of the Huerva, in the Campo de Cariñena, surrounded by vineyards and with the sierra de Algairén as a backdrop; from the Torreón de la Lisalta, within its district, a landscape of ochre and reddish tones dotted with scrub can be seen beneath the presence of the mountains. Photo: 19Tarrestnom65 (CC BY-SA 4.0) What to see and do in Tosos