The "Arribes del Duero"
or "Parque Natural do Douro"
is an International Nature Reserve
extending on both sides
of the Spanish-Portuguese border.
The river Duero/Douro's arroyo
constitutes this border.
Thank you, Paul, for your kind comment. As far as the horizon goes: I turned the image *slightly* counterclockwise, because my impression had been (before turning, of course) that the horizon was tilted towards the right hand side. Now you *sense* it's tilted toward the left...? Go figure! My *feeling* (that's obviously no science ... on the contrary to most of my usual pictures of buildings) is that the horizon is now (pun intended) «horizontal» all right and the scene looks on the picture as I remember it... For anyone else reading this: we're talking here about my second entry, not «the above» one ~ db.
This one would be my favorite of your group, love the composition. By the way, am I sensing the horizon going downhill to the left on your 2nd entry, the one with the lake or is it just the perspective. Paul