Illinois gets official state rock

Governor JB Pritzker on June 6 joined legislators, students and teachers at the Morton Arboretum to designate dolostone as the official rock of the State of Illinois.

House Bill 4261 began as an initiative led by a group of elementary school students from Pleasantdale Middle School in Burr Ridge and Maplebrook Elementary School in Naperville. After the students discovered that Illinois did not have a state rock, they created a ballot and had students across the state vote for a winner. The chosen rock was dolostone.

For more on the state rock, please see this week’s print edition.