Just 39 kilometers east of Santiago [1], with a maximum elevation of 3,333 meters, El Colorado has 18 lifts from a base elevation of 2,750 meters. Weekend and holiday lift tickets are around US$34 per day; weekday tickets run about US$27 except for the mid-July to mid-August period, when they cost US$34. There are discounts for children and seniors; seniors get the best deal at El Colorado, for just US$6–10 per day.
The Colorado Apart Hotel (tel. 02/ 6720168, skiandes [at] entelchile [dot] net, US$134–336 pp) offers apartments. The Swiss-style Hotel Posada de Farellones (tel. 02/2013704, US$158–228 s or d) has rooms with shared bath and private bath; rates include breakfast, dinner, and lift tickets.
For additional information in Santiago, contact Centro de Ski El Colorado (Av. Apoquindo 4900, Local 47-48, Las Condes, tel. 02/2463344, www.elcolorado.cl [2]); this is a major departure point for minibuses from Santiago.
Links:
[1] http://www.moon.com/destinations/chile/santiago-and-vicinity
[2] http://www.elcolorado.cl