It depends on the year, but our manmade loop generally survives until mid- to late-April without issue.
They have several K of paved rollerski trail that allows them to stay open deep into april. Only need an couple inches to cover w no snow snakes. But april is mostly skate as the depth may not be there for setting tracks
It depends on the season but with their unique snow making and management, I think you can count on end of April. If you are planning a trip, just keep an eye I on their website. It is a tremendous asset.
April maybe
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