Jacob Isett House and Store, also known as Arch Spring Farm, is a historic property in Arch Spring, Pennsylvania, that preserves a layered record of rural life and commerce. Its limestone store dates to 1799 and its vernacular Georgian limestone house to 1805, joined by a one-story summer kitchen. Five wood-frame outbuildings from about 1870—a wood shed, weigh shed, stable, barn, and implement shed—survive as part of the farm complex. Archaeological remains also reveal an integrated mill village once associated with the site, showing that it was more than a single house or store and reflecting a broader working landscape over time.