Environment

Mammoth Cave National Park has completed its visitor center renovation and exhibit installation and is inviting the public to take a look. An open house is scheduled for 3:30 pm to 5 pm Tuesday. The park says Phase I cost $6 million, provided from park fees, and included demolition of the administrative building to make way for a large lobby, information desk, ticket sales and restrooms.

A University of Kentucky geologist says the 4.3 magnitude earthquake that shook eastern Kentucky over the weekend was too deep to be induced by the region's underground mining activity.

Authorities say crews will start removing hazardous materials next week from a train that derailed on the outskirts of Louisville nearly two weeks ago. A spokeswoman for the Louisville-Jefferson County Emergency Management Agency says the plan to transfer hydrogen fluoride and butadiene from stricken rail tank cars has been approved.