Phat- your marmots look different than ours. We have the brownish red ones. The one you show is gray. Cute little rodent in photographs.

Marmots are after the salt. We females often do #1 and #2 in same cathole.

OM is correct- we humans may view our droppings as disgusiting, but there still are lots of nutrients in it that other animals can utilize. If you have ever owned a dog you know that they can and do eat feces.

There are also some climates (lower elevation US southeast, for example) where the degrading process of soils happens a lot faster. If you burry TP at 11,000 feet in the mountains it WILL be there 10 years later.

Most of the world population does not depend on TP. We can use a lot less too. Get the major stuff off with sticks, leaves, etc. Or take a little squirt bottle and wash off and then just use the TP for a final drying. This way, the TP is not loaded with offensive smells and packing it out in a plastic bag is really no big deal. Regardless of your view on carrying out TP or burring it, less is better.