One of my neighbors built a waterfall in their front yard, by their driveway. It is more of a stream going down the slope than a waterfall but it looks beautiful.
They have a slope of about 30 degrees and they covered a portion of that with medium size rocks from top to bottom of the slope. The water if released from the top and on the bottom I think the have like an underground pool that catches the water which is pumped up by underground hoses.

Does any of you have seen any of these waterfalls?