CLARKSVILLE, Ind. (AP) — A group that promotes and raises money for southern Indiana’s Falls of the Ohio State Park has obtained a $500,000 grant to help upgrade the park’s well-worn exhibits.

A challenge grant that began in April required the Falls of the Ohio Foundation to raise $1 million in order to receive a $500,000 matching grant from the Louisville, Ky.-based James Graham Brown Foundation. The News and Tribune reported that the Indiana foundation topped that goal by raising $1.24 million.

The featured attraction at the state park near the Ohio River town of Clarksville is a 400-million-year-old fossilized coral reef. But many of the park’s current interpretative exhibits are nearly 20 years old and in need of renovation or replacement.

The new exhibits are expected to be dedicated in early 2015.

Copyright 2014 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.