It may be easy to rationalize that only one flower that you pick will not hurt anything, but if everyone that visited the park took just one flower there would be none left to enjoy today, but more importantly, the seed would be prevented from falling and propagating the species. Rocks might be a nice keepsake, but here again, they, too, serve a function here. All plants, including the ferns and mosses, are also protected. Most everyone will realize that animals are protected here, and poaching is prohibited. You might not know that feeding the animals is also prohibited to protect not only the hand that is feeding them, but the animals' well-being as well.
All wildlife is protected here.
Fishing is permitted. However, there are very stringent fishing regulations, and you should check on them if you intend to fish. This is not as true as it used to be because we want you to take other's litter, and with increased backcountry visitation, we emphasize low impact camping to minimize the impact of the footsteps left. Please check for information on Low Impact Camping before leaving the trailhead. Picking, digging or otherwise damaging plants is prohibited in the park.