Implementation of the alternatives would result in public lands being opened (a beneficial impact), or withdrawn or segregated (an adverse impact) from appropriation under the mining laws. Alternative B, primarily due to withdrawals for ACECs and WSR suitable waterway segments, would result in the largest acreage of restrictions to locatable mineral (325,102 acres), followed by Alternative A (174,354 acres), then Alternative D (72,031 acres), and Alternative C (47,846 acres). Alternative B includes the greatest acreage of withdrawals in known or moderate potential areas for occurrence of common locatable minerals, followed by alternatives A, D, and C respectively.