Riverside Woods of the Ebro at Caspe Nature · Caspe, Bajo Aragón-Caspe, Zaragoza Image of Caspe, not of the place itself. Riverbanks and riparian woodland of the Ebro river as it passes through Caspe (Zaragoza), next to the mouth of the Guadalope. The riverside forests, formed mainly of black poplars, reed beds and rush beds, create a habitat that links with the surrounding mountain landscapes and dryland fields. Grey heron, purple heron, little bittern, little egret and kingfisher can be observed there. Photo: Zarateman (CC0) What to see and do in Caspe