Paradise is how many people still think of this small picturesque community known as Keystone Heights. It is located in the northeast region of the state of Florida, situated in the southern tip of Clay County amidst numerous sand bottomed lakes.

Keystone was settled by Pennsylvanians back in the early 1920s and was named after the "Keystone State". The City was incorporated by founding fathers and received its official city charter in April, 1925.The Keystone Inn, was built in the early 20's as were roads and several of Keystone's first homes. The Keystone Inn celebrated its grand opening on January 1, 1924.

In the early days well up into the late 40's and early 50's, it was the focal point of many social activities within the community until a fire raged through its upper floors in 1954. The Inn was torn down in July 1999 after years of wear and tear made it a safety hazard to the community. Most of the businesses are family-owned service, retail and professional enterprises, which along with the headquarters of Clay Electric, provide the personal one-to-one service.

Recreational opportunities include a public beach with bathhouses and shaded picnic tables, public boat ramps on many lakes, lighted tennis courts and a private golf courses open to public play plus dozens of lakes of all sizes, or fishing, cabins and campsites, canoeing, picnic pavilions and nature trails.