Earth Day is celebrating its 55th anniversary this year. The environmental event is marked by an estimated one billion people across more than 190 countries, according to the Earth Day Organisation.

The Pueblo Zoo announced Wednesday that their Earth Day event has been rescheduled for Saturday, coinciding with their annual Mother’s Day weekend event.

Among butterflies and under shady trees, students and faculty explored and discovered the Kirsch Center and Cheeseman ...

Various timed rides 10 a.m.-6 p.m. Saturday, May 10, departing from Oregon Rail Heritage Center, 2250 S.E. Water Ave.; ...