Elevation Mammoth is especially popular with skiers from Southern California - the resort, Mammoth Lakes, is about three hours south of Lake Tahoe (and thus six to seven hours from San Francisco, depending on the weather). Partly for this reason, it's better-attended by L.A. skiers than Lake Tahoe Gay Ski Week, held in early March, which draws a bit more from the Bay Area. From Los Angeles, the drive is about 5.5 to 6 hours (assuming you don't hit super-snowy roads and lots of weekend traffic). Of course, you can also just fly into the region's small and handy Mammoth/Yosemite Airport, which has regularly scheduled service from San Francisco, Los Angeles, Orange County, and San Diego.
The four-day weekend consists of a series of parties (check the official Elevation Mammoth event calendar for details, beginning with a Welcome Event at Gomez's on Wednesday. Then on Thursday through Saturday (plus a Sunday Apres-Ski party), the festivities continue with more fun starting after skiing in the late afternoon, and then continuing with late-night parties each evening. Top DJs Brynn Taylor, Drew G, Pornstar, and Josh Peace are on hand hosting various parties, and there's a comedy night at McCoy Station featuring Miss Coco Peru. A big event this year is Friday night's Party at 10,000 Feet, hosted by gay pop icon Lance Bass. You can buy tickets for Elevation Mammoth online, with several different packages available.
Of course, there's also skiing each day at the exceptional Mammoth Mountain Ski Area, one of the West's snowiest locales (the average annual snowfall is more than 400 inches, and the mountain comprises some 3,500 acres of skiable terrain).
Elevation is offering lodging deals at a number of local host hotels - here's the Elevation Mammoth Lodging Guide, complete with links and booking information on each hotel. These include Village at Mammoth, Westin Monache, Sierra Lodge, and Mammoth Mountain Inn. Also take a look at the excellent travel website produced by the Mammoth Lakes tourism office.