Survivalist hidden cache

Survivalist hidden caches are small duffle bags found in the Fallout: New Vegas add-on Honest Hearts which contain a random quantity of miscellaneous loot.

Characteristics
Six Survivalist Hidden Caches can be found in Zion National Park, primarily in booby-trapped caves. They look like duffle bags and contain various items including ammunition, weapons, and apparel. The caches were apparently left behind by Randall Dean Clark, "the Survivalist," whose diary entries can usually be found in the nearby vicinity.

There is a challenge related to the Survivalist Hidden Caches which grants XP upon finding six caches. The cache at Red Gate is not required to complete the challenge, but this bag contains the Survivalist's Rifle.

Locations
They can be found at 6 locations, these are:
 * Stone Bones Cave: Head through the cave, and watch out for the bear traps, trip wires and a plasma mine . When you reach a fork, take a left. Inside the chamber you will find a reloading bench, workbench and workbench crate, a campfire and some crates. The bag is on the elevated area behind the reloading bench, underneath a bit of rock directly to the right of the bedroll. If you are next to the terminal you have gone too far -- it's in the corner of the L-shaped platform.
 * Morning Glory Cave: Fight through or evade the Giant spore plants in the main chamber and head up the rocks to the southern part of the cave. After picking the lock and going inside, you will find the bag next to a bedroll. Also inside is a terminal and the Grand Staircase map for The Grand Staircase quest.
 * Fallen Rock Cave: From the main entrance, head through the cave, and watch out for rigged shotguns activated by trip wires and a few mines along the way. When you reach a fork, take a right, head down and watch out for the trip wire triggering a large explosion. There will be an open area to your left and the stash will be inside. There are two rigged shotguns guarding the area so just watch out for them. Inside is a workbench and workbench crate, reloading bench, some crates, a terminal and a campfire, and the bag itself is located at the head of a wooden bed behind the campfire.
 * Two Skies Cave: Once you are inside the cave, head down to your right and you have two options to get to the stash, swim underwater, or decrypt an average terminal to shut down the electrified door. Alternatively an easier way is to shoot the generator on the left hand side of the door through the wire fencing, doing so cuts the electricity and opens the door. If you choose to swim, then you will have to pick an average lock to get inside. Once you are inside the hideout, in the upper area you will find a Campfire Sack, a shelf which has some various boxes and the bag in the upper area, and in the lower back area you will find another shelf, a few more crates, a terminal, and a reloading bench.
 * Cueva Guarache: Once inside the cave, either take the first left you can and head down, or make your way through the bushes and traps ahead and pick a hard lock to get inside. If you head left, inside a large room you will encounter Spore Plants and various types of Spore carriers. Defeat them and head up the ramp at the back of the room. Once on top, you will encounter three more plants before you can get access to the cache. Before entering the back area, there is a mine on the floor, so be careful. Once inside there is a terminal, campfire, workbench and workbench crate, gun case, and the bag is next to the bed on the floor.
 * Angel Cave: Travel through Angel Cave and exit out the back entrance. Head west until you reach the cliff and its on the ground to the left underneath a hand print.