Lichtenberg figure on the water

What don’t you see with rivers around the world but especially rivers and their valleys in mountain areas?

Are rivers formed by water erosion or by by gEUlogy? Are river valleys the result of lichtenberg type discharges or by mega lightning strikes, the thunderbolts of the gods? Are they lichtenberg rivers or lightning rivers?

Or are river valleys caused by “lightning water” erosion or “lichtenberg water” erosion?

Is the river there because of the valley or is the valley there because of the river?