 that rangers recently came across used toilet paper waving hello, along with a full roll. They also helpfully gave out some tips on how to facilitate taking your toilet paper and its contents with you, like stashing it in a sealable plastic baggie and covering the bag in tape so you don't have to look at it. Officials also cautioned visitors against burying their used toilet paper as weather erosion and digging animals would almost certainly return it to the surface before it biodegrades in one to three years.