#19499 Mariano José Maria Bernardo Fortuny y Carbó (1838-1874)

The picture has something of this: landscape, mountain, scenic, rock, outdoors, geology, daylight, water, hill, valley, volcano, environment, sky, nature, light, cave.
Perhaps it’s a painting of a landscape with mountains and a body of water in the foreground and people walking on the other side of the painting.