E.g., United States v. 179.26 Acres in Douglas Cty., 644 F.2d 367, 371 (10th Cir. 1981) (consistent uses of commercial rock quarry and improved livestock and grain farm); United States v. 1,629.6 Acres in Sussex Cty. (Island Farm II), 360 F. Supp. 147, 152-53 (D. Del. 1973), aff’d, 503 F.2d 764, 766 (3d Cir. 1974) (“we affirm on the basis of the district court’s fine opinions”).