Trails used for running and hiking during the summer make great places for skiing during the winter. Many are fenced to keep people off the fairways, a necessary precaution for both the privacy of the golfers and the safety of others. But in winter, you are more likely to gain access to courses that might be closed to you at other times of the year. I frequently ski on a private golf course near my home, and I am not alone in doing so. One advantage of golf course skiing is that, because of their smooth and grassy surface, you only need an inch or so of snow to ski on them.
Rural areas have county, state and national parks.
With snow on them, these trails are perfect for skiing. Being out of the sun, the snow on them lasts longer. With trees around, you will be protected from the wind while skiing. In my area, I often ski on the open trails of the Dunes National Lakeshore. Parks in northern areas of the U.S. where snow is frequent and deep often respond to public demand by establishing Nordic Centers.