This bill provides for conservation or transfer of land in Nevada. Specifically, the bill transfers approximately 41,055 acres of land to be held in trust for the Moapa Band of Paiutes of the Moapa River Indian Reservation; adjusts the boundary of the Red Rock National Conservation Area to include additional lands; adjusts the boundary of the Rainbow Gardens Area of Critical Environmental Concern to exclude certain land; conveys, upon request, certain federal land to a governmental entity in Clark County for any public purpose; revokes the Ivanpah Area of Critical Environmental Concern; establishes specified special management areas for conservation purposes; designates the peak of Frenchman Mountain as the Maude Frazier Mountain; makes certain funds available for capital improvements in the Tule Springs Fossil Bed National Monument and for implementation of sustainability and climate initiatives in Clark County; designates additional lands in Nevada as components of the National Wilderness Preservation System; requires land conveyances to local governments in Nevada for specified public purposes; makes certain funds available to the city of Mesquite for implementation of a watershed plan for the Lower Virgin River; expands, and expands eligible uses of, the limited transition area located in the city of Henderson; establishes off-highway vehicle recreation areas; conveys to a public water agency in Clark County, upon request, federal land for the construction and operation of critical water conveyance infrastructure for communities serviced by that agency; and requires completion of the construction of the six erosion control weirs on the lower Las Vegas Wash within the Lake Mead National Recreation Area.