either an old picture or just meant has a no hunting sign.

I found this line on the Yosemite National Park Webpage....

The possession, use, or discharge of pepper spray (including bear spray), pellet guns, and BB guns in Yosemite National Park is prohibited.

According to their web site its ONLY legal to have a gun, not a spray... odd

I really want to see the courts convict a person for firing either a gun or spray in a life threatening situation.