Elko Motocross and Tribal Conveyance Act - Directs the Secretary of the Interior to convey to Elko County, Nevada, without consideration, all right, title, and interest of the United States in and to approximately 300 acres of land managed by the Bureau of Land Management (BLM), Elko District, Nevada, as depicted on the map as "Elko Motocross Park." Requires the land conveyed to be used only: (1) as a motocross, off-highway vehicle, and stock car racing area; or (2) for any other public purpose consistent with the Recreation and Public Purposes Act.

Holds in trust by the United States for the benefit and use of the Te-moak Tribe of Western Shoshone Indians of Nevada and makes a part of the Tribe's reservation approximately 373 acres of BLM administered land identified on a specified map as "Lands to be Held in Trust." Prohibits class II or III gaming on such land. Limits the use of such land to: (1) traditional and customary uses; (2) stewardship conservation for the benefit of the Tribe; and (3) residential or recreational development, or commercial use.