What is the setting of MrFitzgibbon's farm in MrsFrisby and the Rats of NIMH?

Mr. Fitzgibbon's farm in "Mrs. Frisby and the Rats of NIMH" is set in a rural countryside with fields, a farmhouse, a barn, and a nearby rosebush where Mrs. Frisby and her family live. The farm is portrayed as a typical rural setting with elements of nature and human habitation.