People behind a major Hinsdale development say they can tuck 317 RV sites onto a summer camp property without messing up the neighborhood. But Hinsdale officials had questions this week about traffic, water supplies, sewer use, environmental harm — and whether an influx of visitors would be simply too much for nearby Plunkett Lake.

The battle for Longview Avenue is joined in Hinsdale: Will a national company win a permit for a "Yogi Bear's Jellystone Park" RV campground? Or will objections raised by neighbors prevail?

HINSDALE — A half-century of summer camp history is on the block in Hinsdale, as a deal advances that would transform Camp Emerson into a nati…