Does anyone else find the example picture unconvincing? It looks more like a very shallow valley to me. Far in the distance it looks like it's rising, but closer to the camera, it looks like it's (admittedly very slightly) downhill.
Sometimes these sort of things aren’t as apparent in a picture compared to actually being there.
I thought the same until I realized that the example picture is attempting to demonstrate the effect using the direction of the flow of the puddle of water in the foreground (the caption reads : Water appearing to run uphill at Magnetic Hill in New Brunswick).