Hi Keith
We passed near to Troyes on the way home from the Alps last week.
I had the CC Caravan Europe 2009 Guide on my desk so I had a quick glance. None of the 3 sites listed under Troyes are open all year.
There are, however, 3 sites not too far from Troyes which ARE listed as open all year:
(1) FFCC Camping La Barbuise, Arcis Sur Aube
Tel: 03 25 37 50 95 OR 03 25 37 41 11
(2) Camping a la Ferme des Haut Frenes, Eaux-Puiseaux.
www.les-hauts-frenes.com
Tel: 03 25 42 02 95
(3) Camping La Colombier, Brienne Le Chateau
Tel: 03 25 92 23 47
I don't know any of these personally but they all seem to have positive comments made by clients in the CC book.
I hope this helps.
Regards
Tim