Tanren Mines (Mines, TM) is a mainly Rock-, Ground-, and Poison-type dungeon in Tanren, found north of the road fork south of Tanren City. The dungeon has 28 Floors, and supplies 
HM Rock Climb. You can continue onto Tanren Mines Depths optionally, with a Pokémon that can learn or has Rock Climb. Starting on Floor 23, Hippowdon can spawn so sandstorms may appear due to its Ability Sand Stream.
Attributes
| Traps | |
|---|---|
| Icon | Name |
|
Explosion Trap |
|
Grimy Trap |
|
Gust Trap |
|
Mud Trap |
|
Poison Trap |
|
PP-Zero Trap |
|
Slumber Trap |
|
Spikes Trap |
|
Spin Trap |
|
Stealth Rock Trap |
|
Sticky Trap |
|
Summon Trap |
|
Toxic Spikes Trap |
|
Trip Trap |
|
Warp Trap |
|
Wonder Tile |
Tanren Mines gains darkness on Floor 7, which increases on Floor 15 and 21. Water in the dungeon disappears on Floor 25.
On Floor 20 is a sealed chamber.
Box items:
Iron Silk- Huge Yellow Apple
- Revive
- Nugget
After Floor 14 is a maze called The Quarry. It features different warp stairs around the map, all leading to a dead end full of 16 Zubat. To leave the dead end room all of the Zubat must be defeated, and then warps will appear. Only one warp in The Quarry leads to the correct ending and allows you to move on. The location of the correct warp is the first staircase northeast of the initial spawning point.
Boss
A Nidoking and Nidoqueen are found after the last floor of Tanren Mines. The two Pokémon try to break down a wall, but then, they quickly mistake the player as an enemy and attack. After defeat, Nidoking apologizes to Nidoqueen for failing, but then they realize that the player is friendly after Nidoqueen points out how blind they were, and Nidoking and Nidoqueen ask the player to rescue some miners while Nidoking explains about the monster that Nidoking and Nidoqueen mistook the player for. Nidoqueen praises the player before a pathway is revealed. Nidoqueen wishes the player good luck before walking off with Nidoking.
They know the following moves:
- Nidoking: Earthpower, Fire Blast, Sludge Bomb, Thunderbolt
- Nidoqueen: Bulldoze, Helping Hand, Toxic, Venoshock
Boss drop:
- Black Sludge (Nidoqueen)
- 2 Mushrooms
Dialogue:
- Nidoqueen: How much longer is this going to take, Nidoking?
- Nidoking: I'm almost done. A little more and this wall should give.
- Nidoqueen: W-What if that THING comes back for us?
- Nidoking: We managed to escape it, didn't we? Don't worry, Nidoqueen, we don't be fighting that monster again anytime soon. Besides, it should be too slow to catch up wi--
- Nidoqueen: AAAH!! N-Nidoking quick! It's here!!
- Nidoking: Crud, it followed us!? Stay close, Nidoqueen, we make our final stand here!
- Nidoking: We just aren't strong enough. I'm sorry, Nidoqueen, I tried...
- Nidoqueen: No, wait... Look! Oh, how could we be so foolish, it's just an explorer!
- Nidoqueen: Oh dear, please forgive us! We thought you were the monster. We didn't mean to attack you like that...
- Nidoking: I should explain. I'm sure you've heard of the mining team that got lost down here. My partner and I came here to investigate.
- Nidoking: We were doing fine until... Well, we found some sort of ancient ruin, deep in the mine.
- Nidoqueen: We think the miners are still there somewhere. Their supplies were scattered all over the cavern. We think they might have awakened some sort of ancient Pokemon...
- Nidoking: The same monster that caught us by surprise and overpowered us. We couldn't even dent the thing, so we made a run for it. We decided to rest in here for a bit before we head back out.
- Nidoking: If you still want to go down there, I won't stop you. I'll finish clearing the path, but be careful down there. The deeper you go, the more dangerous it gets...
- Nidoqueen: You're very strong, and I know those miners are still down there. Please... save them. You're their only hope now.
- Nidoking: Alright, the path is clear. Let's get out of here, Nidoqueen.
- Nidoqueen: Farewell, and good luck.
There are several quicksand warps further in the same room. The correct warp is the smallest sand pool in the top-left section. You'll be warped into a room containing a single Rock Climb HM, Kangaskhan Storage statue and Chimecho Assembly post. Going into the wall on the right leads you to Arid Cavern.
Arid Cavern
The Arid Cavern is a puzzle where the objective is to get through the map using the newly obtained Rock Climb, going through various sand pool warps. At the start of the map is a warp that exits to Tanren City Plaza. Completing the puzzle successfully gets you to the entrance to Tanren Mines Depths.
The pink sand pool warp will directly send you to the entrance of Tanren Mines Depths, and is only accessable after you have cleared Tanren Mines Depths once.
Secret Room
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Tanren Mines has Secret Rooms starting on Floor 15. There's two Deluxe Boxes in them.
Box items:
- Bug Diamond
- Dark Diamond
- Dragon Diamond
- Electric Diamond
- Fighting Diamond
- Fire Diamond
- Ghost Diamond
- Grass Diamond
- Ground Diamond
- Ice Diamond
- Normal Diamond
- Poison Diamond
- Rock Diamond
- Steel Diamond
- Water Diamond
- Fire Stone
- Shiny Stone
- Thunder Stone
- Water Stone
- Reviver Seed
- Nugget
- Escape Rope
- TM Stone Edge
- TM Dig
Pokémon
Pokémon in bold are recruitable. Please visit the Recruitable Pokémon page for more information.
| Portrait | # | Pokémon | Floor | Recruit rate |
|---|---|---|---|---|
 | 074 | Geodude | B1-7F | Unrecruitable |
 | 293 | Whismur | B1-7F | 5.2% |
 | 041 | Zubat | B1-14F | Unrecruitable |
 | 304 | Aron | B1-14F | 2.6% |
 | 837 | Rolycoly | B1-14F | 5.8% |
 | 050 | Diglett | B1-22F | Unrecruitable |
 | 030 | Nidorina | B1-22F | Unrecruitable |
 | 033 | Nidorino | B1-22F | Unrecruitable |
 | 294 | Loudred | B8-22F | Unrecruitable |
 | 020 | Raticate | B8-28F | Unrecruitable |
 | 075 | Graveler | B8-28F | Unrecruitable |
 | 095 | Onix | B8-28F | Unrecruitable |
 | 168 | Ariados | B8-28F | Unrecruitable |
 | 305 | Lairon | B8-28F | Unrecruitable |
 | 024 | Arbok | B15-28F | Unrecruitable |
 | 042 | Golbat | B15-28F | Unrecruitable |
 | 051 | Dugtrio | B15-28F | Unrecruitable |
 | 552 | Krokorok | B15-28F | Unrecruitable |
| 838 | Carkol | B15-28F | Unrecruitable |
 | 028 | Sandslash | B23-28F | Unrecruitable |
 | 076 | Golem | B23-28F | Unrecruitable |
 | 169 | Crobat | B23-28F | Unrecruitable |
 | 306 | Aggron | B23-28F | Unrecruitable |
 | 232 | Donphan | B23-28F | Unrecruitable |
 | 450 | Hippowdon | B23-28F | Unrecruitable |
 | 449 | Hippopotas | B23-28F | 10% |
Items
The items in Tanren Mines are frequently sticky. Almost all of these items can spawn hidden or in the water.
| IS | Item | Location | Tile | Hidden |
|---|---|---|---|---|
 | Diamonds | B1-28F Dropped by Pokémon | Wall | Both |
 | Apple | B1-28F | Floor, Water | Both |
 | Big Apple | B15-28F | Floor, Water | Both |
 | Grimy Berry | B1-28F | Floor, Water | Both |
 | Grimy Food | B1-28F | Floor, Water | Both |
 | Ether | B1-28F | Floor, Water | Both |
 | Mental Herb | B1-28F | Floor, Water | Both |
 | Oran Berry | B1-28F | Floor, Water | Both |
 | Leppa Berry | B1-28F | Floor, Water | Both |
 | Chesto Berry | B1-28F | Floor, Water | Both |
 | Pecha Berry | B1-28F | Floor, Water | Both |
 | Shuca Berry | B1-28F | Floor, Water | Both |
 | Blast Seed | B1-28F | Floor, Water | Both |
 | Quick Seed | B1-28F | Floor, Water | Both |
 | Gummis | B10-28F | Floor | No |
 | Escape Rope | B15-28F | Floor | No |
 | Gravelerock | B1-28F | Floor, Water | No |
 | TM Sandstorm | B??-28F | Floor | No |
 | All-Aim Orb | B1-28F | Floor, Water | Both |
 | Blowback Orb | B1-28F | Floor, Water | Both |
 | Cleanse Orb | B1-28F | Floor, Water | Both |
 | Pierce Orb | B1-28F | Floor, Water | Both |
 | Quick Orb | B1-28F | Floor, Water | Both |
 | Sandy Orb | B1-28F | Floor, Water | Both |
| Stayaway Orb | B1-28F | Floor, Water | Both |
 | Warp Orb | B1-28F | Floor, Water | Both |
 | Shards | B21-28F | Floor | Yes |
Dungeon Objective
This dungeon offers HM Rock Climb after the boss, giving access to various new dungeons and locations. Players commonly run Tanren Mines for Poké, because of the amount of Diamonds you can find, or to get to Tanren Mines Depths.
Tips
- Do not complete missions from this dungeon if you wish to visit Tanren Mines Depths. This is because the dungeon completion sound effect plays after leaving the boss room, teleporting you back to the mission board in Grassroot Town if you have a mission completed.
Trivia
- On March 25 of 2019, Tanren Mines was split into another dungeon; Tanren Mines Depths. It was created so players could use HM Rock Climb right after obtaining it, rather than doing all 42 Floors it had been.
- This dungeon was one of the first to featured on the official PMU Tumblr page.
- The Quarry is similar to the "Lost Woods" from the Legend of Zelda series.
- When this dungeon was released the location of the correct warp changed every few days.
- In the player house "Gaia", players can find what appears to be an early sketch for the mines' outer entrance.