Aside from Gat park and Foret Larose (near Limoges, yeah my neck of the woods, lol), I googled and found these links for other nearby xcountry ski trail options: https://ottawaroadtrips.com/2025/02/17/ski-these-urban-cross-country-trails-in-and-around-ottawa/

https://ontarioskitrails.com/cross-country-ski-trails/