I'm in PA. Most of the state parks, DCNR, PFBC or local run lakes are under 250 acres (mostly trolling motor only) but some are larger and still don't allow atvs, sleds or cars on the ice. You can run ATVs and sleds (maybe cars) on wallenpaupack in NE PA but thats a big lake (over 5,ooo acres) and you have to watch the ice as it varies a lot.