Roissy airport is close enough here that you will see aircraft sliding down the sky at a low angle, a strange companion for a ride that began among limestone villages and river cliffs.
It is honest to say that the riding here is a transition. You are crossing a landscape that has been squeezed between logistics warehouses, the runways of Charles de Gaulle and the cereal fields that still survive between them. Roads are fast and straight, roundabouts are frequent, and heavy lorries use the same lanes as you. The pleasure is in the moments between: a line of poplars, a small village church, a farm track that lets you slow down. If you have any choice, avoid rush hour on the N2 and the roads around the airport, because the traffic here can turn a good day sour in minutes.
The land itself has a long history of feeding Paris. This plain once supplied grain and vegetables to the capital, and the villages kept their old centres even as everything around them became industrial. Goële, the old name for the area east of here, still turns up on signposts and in the names of local products. The clay soil explains why the fields are so heavy and productive, and also why they turn into a sticky mess after winter rain.
Practically, Mitry-Mory has everything: fuel, supermarkets, a handful of cafes, and a railway line into Paris if the bike or the rider needs to call it a day. The smaller Moussy villages are quieter and good for a last coffee if you find an open bar, though in this part of the Paris region many village cafes close on Sunday afternoons and Mondays. Fill the tank before you head into the city, because station prices drop noticeably once you leave the autoroute and its service areas behind.
For a finish, it works in its way: you are close to the Paris ring and the northern road network, with the long limestone day behind you. Take a minute to look out over the stubble or the green crops, and notice how large the sky is.