Orient the principal axis of the monument on the rising or setting of the sun at a solstice, so that the architecture frames it.
Link each monument to the river by an avenue
Run a straight, banked or surfaced avenue from the entrance of each monument down to the river, on the monument’s solstice axis, so that the approach itself is aligned on the sun.
At Durrington a road of rammed flint about 30 m wide runs for well over a hundred metres from the Southern Circle down to the Avon; looking up it from the river one faces the midsummer sunset. The Stonehenge Avenue, a pair of banks and ditches about 12 m apart, leaves the stones along the solstice axis towards the midsummer sunrise, then bends east and south to reach the Avon near West Amesbury, nearly three kilometres away, where a small circle of bluestones stood by the water.
Related rules
Enclose the gathering place with a circular bank of chalk and dig the ditch on the inside of it, so that the earthwork marks off a sacred interior rather than defending it; leave causeways of undug ground for the entrances.
Build the circle of the living in timber, which decays, beside the settlement; build the circle of the ancestors in stone, which endures, apart from it; and join the two by avenues and the river.
Cite this page Chris Paton, “Link each monument to the river by an avenue”, The Textbook of Architecture, https://textbookofarchitecture.com/rule/avenue-to-river. Text, drawings and models licensed under CC BY-NC 4.0.