The first step would be tallying everything that would be necessary. Costs come next. Basically you'd need many, many different thing to work in your favor. You'd need land, obviously. Leasing land is an option, but it can lead to disputes (see: Kingvale Terrain Project). So owning would be ideal. Runs/slopes would have to be cleared. Even if you're just using one run, brush cutting and summer grooming would be necessary. If you're on the East Coast, you're lookking at snowmaking. Which means you're looking at water rights, fees, etc. in addition to infrastructure (guns, pumps, etc.). A home-style system would be an option, but not really suitable for a commercial operation. Night lighting would, I assume, be necessary. Which means you'd need electrical work to be done. Cheap tow ropes, once easy to find, are now a little harder to come by due to the demise of small ski areas. You'd almost be better off with a t-bar. Check out http://www.resortboneyard.com/
and take a look there. Cats for grooming. Some form of shelter (i.e. lodge). Insurance. Not to mention the features themselves. Unfortunately, in my opinion, such an endeavor would not be sustainable unless you had a huge market from which to draw and an excellent marketing team.
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