it took us a few hours. that skylight was origionally someone walkin on top and having one leg fall through accidentally
we were gonna go do the HUGE one behind petco the next day. but people got lazy and we ended up having a massive capture the flag snowball fight on that one instead. towards its peak, that petco mound had to be about 40 feet high and 150 square feet in widths
i don't even know how they managed to pile the snow up that high