In this artwork, how is the Subject matter discussed?
The view is from the quay on the east side of the Rhône, into the knee of the river towards the western shore: coming down from the north, the Rhône turns to the right at this point to surround the rocks on which Arles is built. From the towers of Saint-Julien and Saint-Trophime at the left, the spectator follows the east bank up to the iron bridge connecting Arles to the suburb of Trinquetaille on the right, western bank. This implies a view from Place Lamartine towards the southwest.
43.682367°N 4.630287°E﻿ / 43.682367; 4.630287  Though, as noted below this is not consistent with the stars portrayed as the Plough in Ursa Major would not be visible in that direction.
Ursa Major Rhône the Plough Arles Trinquetaille quay