From Carol Brown:
Hikers should always practice Leave No Trace: this means leaving nothing behind that would reveal you had been here. This includes leaving no orange peels, no banana peels, no apple cores, no peanut shells, no water bottles, no kleenex or toilet paper, no dog poop, and even in many parks no human poop (like McKittrick Canyon). Plan to carry several sandwich bags in your pack to put this trash in, and even a larger plastic bag to pick up trash others have left. It takes months or even years for these things to dry up and disintegrate and wild animals do not eat them (and should not be fed human food anyway). Carry the proper bags to pick up your dog's poop and carry it out and dispose of it in a solid waste container.
Note this park rule:
59.134 Rules of Conduct in Parks
(c) Animals. Except as provided in this subsection, it is an offense for any person to bring into a state park, possess while in a state park, or release into a state park any species of animal. A pet or equine may be brought into and possessed within a state park as provided in this subsection.
(2) Pets. It is an offense for any person to:
(C) fail to immediately collect and properly dispose of fecal material deposited by a pet for which a person is responsible. For purposes of this paragraph, “properly dispose” means to deposit fecal material in an appropriate solid waste collection container;
Let's practice Leave No Trace and educate others to do likewise.