Pokemon Heart Gold and Soul Silver: Walkthrough - Mt. Silver Cave
Just so you know, Legendary Pokemon MOLTRES resides in here, too. But we are not going for it right now, check the Legendary Pokemon sidequests for where and how to get to Moltres.
Anyway, go to the rocky wall on the right, and use ROCK CLIMB to go up. Exit out the exit on the right.
Go down, pick up the ESCAPE ROPE. Go down, then go up the stairs to the left, and go up the second stairway too. Go up, and go up the first stairway you come to. Go down, and grab TM76 STEALTH ROCK. Now go back up, and at the top of this path is a stairway going down. Go down. If you go inside that cave entrance, you can get a FULL RESTORE, but that's it. Go down the next flight of stairs near the one you just came down. Then go down, and down another flight of stairs. Then go downward, and up the first stairway. Enter the cave entrance here.
Follow the linear path as it winds, eventually leading you upward. Go up the large stairway you come across, and go to through the top.
Go forward, and up the stairway, go left, and up that stairway too. Go left, and down, then right, and then up. Don't go up the stairs yet, go left and grab the MAX ELIXIR. Now go up that stairway.
Go right, then down, then left, then up, and there is a stairway. Grab the MAX REVIVE to the right first, though. Then go up that stairs.
Go left, then down. Smash the rocks, then keep going down, then right. Grab the CALCIUM. Backtrack to the stairway, and go right, and out the exit at the top.
Go right, then down. Enter the cave and grab a PROTEIN, then go back out. Go down, then enter the second cave entrance.
Go down, and out the only other exit.
Go downward, then left. There is an entrance, but first use ROCK CLIMB on the left side. Go left again, and climb that wall too. Go right, and up, and grab the PURE INCENSE. Now climb down twice, back to that entrance we crossed earlier. Go inside.
Go left, and out the only other exit.
ROCK CLIMB on the wall right next to the entrance/exit. Then use ROCK CLIMB on the rocky wall on the far left. Climb up the next slope to get the DAWN STONE. Now go back down, twice, and take the middle path this time. Then climb up again, and enter the cave.
Go left, and climb up the only wall. There is one way out. Go.
This walkthrough was written by MKaykitkats, used with permission.