Thirty years of scientific study on a Vilas County lake will come to an end on Monday.
Scientists are removing a barrier that has divided Little Rock Lake in two since 1984. Researchers installed the barrier to conduct a landmark study on the effects of acid rain. Carl Watras is a research scientist with the state Department of Natural Resources. He's been involved with the Little Rock project since the beginning. Watras says at the time there was speculation about the effect of acid rain on lakes, but there was no definitive evidence.