The Last Of Us Walkthrough Part 46 – Chapter 7: Tommy's Dam (Outskirts)
Start on down the path leading up the hill. Look for the burnt-out cart that is ahead on the left. There you will find more Crafting Items just sitting around the husk of the car. You will also find the “El Diablo”, the strongest handgun in the game, sitting to the left of the car. While it does not have the ammo capacity of any other gun it is very powerful. Just keep it in mind if you are up against Bloaters. The good news is for once you do not need to worry a lot about the Infected immediately.
Head on down the slope from the car and drop over the first ledge. Head on over to the left and then drop down the next few ledges to get to the river itself. Head up it to the right. As the path slopes down to the river, you will see some rocks to the right. Head over there. Climb up them and look around for the next crashed car here, before the bridge. Beneath it you will find another Comic Book for Ellie. After that start dropping down the ledges and get down to the river bed. Continue along it underneath the bridge, up the slope toward the building ahead.
Ellie will ask just what it is and Joel explains what he knows. Head on up the stairs and over to the right. Open the door with a Shiv to find more supplies, parts as usual. Head on out and over to the left-hand side of this platform. There you will find a wheel to interact with. This will clear the path forward across the path half-way across the running water. Head over to the right and jump the metal fence. You will see Ellie standing by the water. You have some swimming to do.
Jump into the water and find the building that has collapsed into the river. Once you have, get over to the hole in the wall. Swim in and over to the left. You will find a pallet wedged into the roof. Interact with it to get Joel to surface with it. Bring it over to Ellie and she will hop on. Head over to the right, along the sluice way, to the opposite side where you can see the second wheel. There is a gap in the fence just to the right of that wheel. Bring the pallet with Ellie there and she will hop up and raise the second gate. Head back over to the left and climb across the barrier and cross the raised “bridge”. On the other side Ellie will offer up a high-five. Best not to leave her hanging, so give her one.
Head forward and drop through the opening in the railing on the left. Head over to where you can see the remains of a campsite. To the right of that you will find a debris pile that has some Crafting Items in it. Next head over to the fallen tree and hop over it. Go to the grave and strike up a conversation with Ellie. After that just head back to the walkway and go on up the stairs.
Go straight forward into the grass and toward the fallen tree. Duck underneath it and head around to the far side of the Bulldozer. There you will find more Supplements for Joel. Follow that by going into the brick guard house you can see opposite the bulldozer. Grab the Crafting Items and the artifact: “Power Plant Map” on the wall in there then head for the gate of the town.
Joel and Ellie do not get the warmest reception but then Tommy comes along and recognizes Joel. He invites them in.