MOUNTAIN VILLAGE-Tomb Raider 2013 map locations guide
OPTIONAL TOMB: TOMB OF THE UNWORTHY
When you reach the tomb, located to the southern part of the Mountain Village, you will need to hop across the room by using the cage in the center hanging from the ceiling. Jump to the far side, to the torch and light it. Hop back on the cage and then burn the bags that are hanging on it. Once you do, hop back up to the upper ledge where you first jumped off and then push the metal cage on the right side of the tomb off the edge. When you do, the metal platform in the center will rise. Jump onto the metal platform now that it is higher and jump off to the left side. Use your ax to climb up the wall and follow the corridor around to the treasure to receive the Relic map.
OPTIONAL TOMB: HALL OF ASCENSION
At the northern area of the Mountain Village, you will come to this tomb entrance. When you enter the structure at the other side of the bridge, you will need to raise the platform directly in front of you and use it to get to the right side wall. Before you operate the lift, go to the left side and use the crank to close the shutters and stop the wind. Once the shutters are closed, return to the crank at the lift across from the entrance and wait a second or two before operating it. Turn the crank and then climb up the box next to it. Hop over to the lift as the shutter opens and it will carry you to the far side of the room, high enough to jump against the wall. Grab the ledge and shimmy to the left to where you can climb up. Do so and then follow the corridor to reach the chest and the GPS Cache map.