We've had quite a few opportunities to cross-country ski already this year. The Ohio & Erie Canal Towpath is only 1/4-mile walk from the house. While proximity is nice, it's pretty much flat and you're working the entire time. Kendall Lake, in the Cuyahoga Valley, has nice trails with some steep hills that are better to go up than down on XC skis. At least you get rewarded for climbing the hills with a break now and then.
This last Saturday we ventured over to The Wilderness Center in Wilmot to check out the ski-ability of their trails. Turns out, it's pretty great as long as you avoid the Pond Trail beyond it's intersection with the Wilderness Walk. We did a big clockwise loop plus the Pond trail in about 1.5 hours. There was only one section we missed that would have probably added another 15-20 minutes. The downhills aren't that steep and didn't have sharp turns like the trails at Kendall Lake. You can view a trail map for The Wilderness Center here.
There was only one guy skiing when we got there and another couple arrived just as we finished. We didn't encounter anyone else while out on the trail. Sometimes it's nice to have that 'all to ourselves' feeling whether on skis or bikes.