King's Dominion hasn't changed a whole lot, but I can tell you some of the changes. Before Volcano it was Smurf Mountain. 3 rides existed inside including a long water ride, a themed rotor, and a Smurf ride that took you on a train through the upper part of the mountain. In front of Smurf Mountain there was a shuttle coaster (Schwartzkopf?) called King Cobra. And to the left of the shuttle coaster was a Bayern Curve themed as Mt. Fuji. Before the water park it was called Candy Apple Grove. This section included a couple of flat rides including a Monster, an Enterprise, and also a Pinfari roller coaster, the Galaxy. There is an excellent picture of this section in The American Roller Coaster by Scott Rutherford. (Buy this book it's well worth the money). If I got any of the names wrong please correct me.