SACRAMENTO — A grove of ancient giant sequoias in Yosemite National Park is no place for a tram ride, gift shop, and asphalt parking lots, say officials who are looking to have them removed.

Park officials released a draft environmental study Tuesday on the effects of an estimated $15 million worth of changes at Yosemite’s popular Mariposa Grove. The proposal includes getting rid of the tram ride, shop, and parking lots — changes designed to restore the habitat for the nearly 500 giant sequoias there.