It has been hollowed out by an ancient river inside to reveal a small sandy cave sheltered by lichen and protected from the sun. At the very end of the cave is the coolest and the most sandy, where the leader makes his or her den. On sunny days the rock heats up and is comforting to be in.

The medicine cat's den is a large clearing with nests ready for sick cats, and two large rocks forming a crevice where the medicine cat sleeps and where herbs are stored. It usually has a puddle of water in the center, so sick cats do not have to venture out of camp. The den is abundant in ferns and moss, but is not the most well-protected of the camp. Cats in the past have used this place to secretly exit camp.

A small entrance tunnel leads to the warrior's den, underneath a large bush which shelters the it from precipitation. In the center is where the most senior warriors get to sleep, where it is the warmest, while younger warriors must sleep on the outer edges where it is coldest. There are always fresh, unoccupied nests ready for the next resident. In the corner, where the warriors keep their old bedding and exchange it for new, is a large pile of dead moss.

The apprentice's den is made just next to the warriors den, made inside a hollow hillside. Moss overhangs the entrance, and inside it has a cozy feel. Crevices lay on both sides of the den, releasing a sheath of light early when daybreak arrives. Moss and feather beds can be seen at each corner. This is where the apprentices chat, reside, at times eat, and sleep.

This is the nursery, a fairly large clearing for queens to come during pregnancy and to care for their kits. The ground is soft so they cannot hurt themselves when they play, and it is well-hidden from hawks and other birds of prey. The queens work long and hard on the nursery walls to keep them thick with thorns, which makes the nursery the safest and most guarded place in the ThunderClan camp. Some cats have made a secret exit here, just in case the queens and their kits need an escape route.

This is where the elders go to live out their days in retirement. It is a shady spot underneath a fallen tree, very warm and soft, but occassionally damp, which gives some of the elders bad aching joints. Apprentices and kits often gather around here to listen to the elders tell stories, while warriors and leaders come to listen to their guidance and advice