The Sierra Club and Friends of the West Shore want to stop the $250 million makeover of the Homewood Mountain Resort, south of Tahoe City.
Homewood wants to bulldoze its current facility and build a four-story hotel, ski-in condominiums, two lodges and retail space.
Developers say it would be the most environmentally friendly project ever at Lake Tahoe, but the environmental group's claim the expansion would increase air pollution and increase runoff into the lake.
