Palms Book State Park, Natural spring park in Thompson Township, Michigan, United States.

Palms Book State Park is a natural spring park in Thompson Township in northern Michigan that centers on a large freshwater spring. The spring, called Kitch-iti-kipi, spreads across about 200 feet and reaches depths around 40 feet, with water continuously flowing from limestone cracks beneath the surface.

A landowner named John Bellaire sold the property to Michigan state in 1926 for a nominal price, creating the foundation for this protected area. The state later developed the site into a public park where visitors could safely access the spring.

The spring holds deep meaning for Native American tribes, particularly the Ojibwe, who traditionally used the sound of flowing water to inspire names for newborns. This cultural connection shapes how visitors and local communities understand and relate to the place.

An observation raft moves across the spring's surface, giving visitors a way to see underwater features through a self-operated system. Visitors should wear comfortable shoes and be prepared for a short walk through a natural setting to reach the viewing platform.

The spring maintains a constant temperature around 45 degrees Fahrenheit throughout the year regardless of season or weather. This stable environment supports plant and animal species that would not normally survive in this northern region.