I didn't grow up near the Falls (Lancaster) but I have never heard of this place... would think I'd at least heard the name but no. Was it like Glen Park?
Every year we'd go here for the 4th of July weekend... hit the park, watch the fireworks over the lake, ... they had some place across the road called Fairyland Forest. The Blue Streak is an awesome coaster and is still up and running strong. Not that far a drive from WNY really.
http://www.newconneautlakepark.com/
http://www.newconneautlakepark.com/attractions/historic-blue-streak-wooden-roller-coaster.cfm