Hi Mike,

I can't answer it. I guess the reason hey said "no snowboards", when I asked, is because it is too flat, but they do offer the option to rent a helicopter and do heli snowboarding without specifying which mountain, so it is possible, although not necessarily on Monte Rosa.

Because of my working hours, I can not call them tomorrow and ask, but their Phone number is 027-966 24 60.
I will be happy to call on thursday, if you can wait.

Regards, Doc.