close-up view of an old, rectangular stone trough situated on a concrete ground surface

close-up view of an old, rectangular stone trough situated on a concrete ground surface. The trough is worn and weathered, with visible signs of age and exposure to the elements. It appears to be made of rough-hewn stone, with a rough, irregular texture along its edges. The interior of the trough is darker and appears to be filled with dirt or debris. To the left of the trough is a white, stucco-covered wall with visible texture and some areas of discoloration or staining. Behind the trough, a series of rough, concrete steps ascend. Further in the background, a weathered white wall continues, with a rough, mottled texture. The ground surface around the trough is a mix of concrete and gravel, with some loose stones and debris scattered about. A shadow is cast by the trough onto the ground. In the upper right portion of the image, a wooden post is visible, and beyond that, a hillside covered with vegetation and some rocky outcrops can be seen. The scene suggests an outdoor setting, possibly in a rural or historical area. The question states the location is Colares, Portugal, but this cannot be visually confirmed from the image alone.