Following a chairlift accident last season that injured seven people at Sugarloaf in Maine, that resort is installing a new load terminal at the base of the lift and upgrading the emergency braking and electronic systems on all other lifts, said spokeswoman Noelle Tuttle. Back in Vermont, more than $600,000 has been earmarked for the installation of new electronic lift drive systems on two gondolas at Killington, as well as communications lines, new haul ropes, component upgrades, and improvements at load and unload terminals for a number of lifts at both Killington and nearby Pico Mountain. [...] to keep kids safe, Maine's Sugarloaf will equip every child in the ski and snowboard school with a GPS tracker that records their location in case they take a wrong turn or get separated from the class.