Hotel's Starwood homepage. It's own homepage: www.westinsnowmass.com Opening November 15, 2012. SPG Category 5 Formerly the Silvertree Hotel which closed for renovations in April 2012. Now accepting reservations. The renovated Wildwood Snowmass will also be opening. Details about the Wildwood's SPG participation have not been provided. The hotels will have an interesting partnership with the New Belgium Brewing Company which is opening a new restaurant there.