The North Branch is home to the Geochron clock, which indicates where the sun is shining at any given moment. The left edge of the clock's pattern marks the moment of sunrise, while the right marks sunset. This sunrise and sunset pattern changes continually, as the seasons progress throughout the year. The clock was a gift from the Friends of the Clinton-Macomb Public Library.
The Friends of CMPL is a nonprofit volunteer organization dedicated to improving library services through underwriting programs and special projects. They hold several fundraisers including seasonal book sales, book bundles, and library tote bag sales.
The Friends group is led by president, Mary Russo and meets the second Tuesday of most months at 7 pm at the Main Library (meetings are not mandatory).