Sabinoso Wilderness Act of 2008 - Designates certain land under the jurisdiction of the Taos Field Office of the Bureau of Land Management (BLM) in New Mexico as the "Sabinoso Wilderness" and as a component of the National Wilderness Preservation System.
Requires any acquired land or interest in land within the boundary of the Sabinoso Wilderness to become part of such wilderness.
Sets forth requirements with respect to livestock grazing in the Sabinoso Wilderness and fish and wildlife in New Mexico.
Continues to allow private landowners adequate access to inholdings in the Sabinoso Wilderness. Requires certain private lands to be managed as an inholding in such wilderness.
Withdraws the lands identified as "Land Withdrawn From Mineral Entry" and "Lands Released From Wilderness Study Area & Withdrawn From Mineral Entry" from: (1) all forms of entry, appropriation, and disposal under the public land laws, except for disposal by exchange in accordance with the Federal Land Policy and Management Act of 1976; (2) location, entry, and patent under the mining laws; and (3) operation of the mineral materials and geothermal leasing laws.