GREENE – To hear the story of their hometown, all anyone in Greene has to do now is look.

“Once Upon A River: Postcards from Greene,” a mural depicting the village and town’s history along the Chenango, was unveiled Thursday on the west side of the Great American building on South Chenango Street.

Designed by nearly two dozen first and second graders in the Greene Primary School and painted by 45 of their parents and teachers, “Once Upon A River” tells the chronological story of Greene using postcards, each capturing a scene from a different period in the town’s history.

“It rocks,” said 8-year-old Michael Freije, one of the second graders who helped create the mural, when asked his thoughts on what the class has accomplished. “It just inspires me how (the parents and teachers) were able to create this artwork.”

Around 100 people gathered to see the mural unveiled Thursday during a ceremony outside the grocery store. Students gave presentations on each postcard, area musician Claus Evans sang songs about the river and school officials gave background on the project’s origins.