The St. George Field Office has recently rehabilitated a mid-19^th century Mormon pioneer residence for adaptive re-use. This small sandstone masonry house was built in 1863 for the Orson B. Adams family, in the now abandoned Mormon agricultural settlement of Harrisburg, located approximately 15 miles north of St. George.   Critical to the successful completion of the rehabilitation project were partnerships with Washington County, the Utah Heritage Foundation, and the National Trust for Historic Preservation; technical assistance from the Utah State Historic Preservation Office; and volunteer labor during several phases of the project. The Adams house will be open for public visitation in the future, with volunteer docents helping to interpret the rich heritage and natural resources of the region.