I just found this info. for State parks in Nevada.
NAC 407.105 Possession or use of weapons. (NRS 407.0475, 407.065)
1. In any park, a person shall not:
(a) Use a bow and arrow, slingshot or paint ball launcher;
(b) Possess a firearm, unless:
(1) The firearm is unloaded and inside a vehicle; or
(2) The person in possession of the firearm has a permit to carry a concealed firearm issued pursuant to the provisions of NRS 202.3653 to 202.369, inclusive, and is carrying the firearm in conformity with the terms of the permit;
© Discharge a weapon, including, without limitation, an air rifle, spring gun or air pistol; or
(d) Throw a knife, hatchet, spear, stone or projectile,
Ê except as authorized by the Administrator.
2. The Administrator may designate zones in which a person may, for the purposes of hunting a species that is designated by the Board of Wildlife Commissioners as a game mammal or game bird pursuant to chapter 503 of NAC, carry and discharge a firearm or bow in accordance with the regulations of the Department of Wildlife. At each park in which a zone is designated pursuant to this subsection, the ranger in charge of the region or the supervisor of the park shall post at the headquarters of the park, and at each area within the park which is designated as a zone in which a person may carry and discharge a firearm or bow for the purposes of hunting, maps of the designated zones within that park.
3. Target shooting is prohibited in all areas of a park, except in an area designated as a firing range.
4. Use of a bow to kill, capture or injure a fish is prohibited within 100 feet of a swimmer.
(Added to NAC by Div. of St. Parks, 12-31-85, eff. 1-1-86; A 3-9-88; 7-25-90; 11-12-93; 3-20-96, eff. 4-1-96; R164-97, 3-1-98; R145-99, 1-18-2000; R118-01, 12-17-2001; R149-05, 5-4-2006)