I lost a ski last season. Powder day in december and very little was open so me and my buddies ducked under the tape. Ski got caught under a branch and it ejected. Looked for it for 4 hrs but nothing. SHITTY, SHITTY day that's for sure. But got it back this summer.
Just wait for summer to roll around, then as soon as the temperature warms up do some hiking on the mountain. Until then, gonna cost you some cash but you will have to rent / buy a new pair.
Other idea suggested to me was metal detector and a shovel