Limestone Lodge is located in Decatur County, Iowa, ten miles east of I-35 and one mile north of the Iowa/Missouri border.

The Lodge itself is a 600 square-foot limestone and frame cabin, completed by Knox L. Campbell in the 1960's. It is currently under restoration by Knox's daughter, Leslie Campbell, who owns and operates Limestone Lodge Gardens.

The land consists of 24 acres of hardwood timber, mostly white oak and shagbark hickory. Settled by Leslie's great grandparents in 1878, the homestead has passed through four generations of the Campbell family since the Mormon Trail brought Duncan and Lida Campbell from Canada to Decatur County for religious reasons. Lida established elaborate flower gardens between 1880 and 1900, some of which remain intact today.

Then her son, Lee, Knox's father, continued with fruit tree and vine plantings of his own in the late 1940's when he and his wife Mimi were still living in the original frame home built by Duncan and Lida. About the same time, Lee and Knox began constructing a small rustic cabin with limestone from a local quarry. It sat unfinished for nearly 20 years until Knox framed in an addition and finished it with plumbing, electricity and gas furnace. Then he constructed an 1-acre pond in a natural draw following the SW slope of the land.