Johto field journalPokémon HeartGold / SoulSilverGUIDES

Route 31 HGSS · Johto Route

Route 31 in Pokémon HeartGold and SoulSilver
Route 31 in HeartGold and SoulSilver (screenshot 1)

Route 31 links Route 30 to Violet City, with the western entrance to Dark Cave on its eastern side. It is a short early route full of Bug and Normal types, but it also ends a small side quest: the sleeping man south of the pond is waiting for the Spearow carrying Mail from the Route 35 gatehouse. As you head into Violet City, you get the Vs. Recorder from your friend at the gate.

Region
Johto
Wild Pokémon
15
Items
4
Trainers
1
HMs
Cut, Surf

Connects to: Route 30 · Violet City · Dark Cave

Where Route 31 is on the Johto mapRoute 31 on the Johto Pokégear map

Wild Pokémon

Tall grass encounter rate 25
PokémonTypeLv.MorningDayNight
CaterpieHGBug4–535%35%–
PidgeyHGNormalFlying330%30%–
PidgeySSNormalFlying4–510%30%–
BellsproutGrassPoison320%20%20%
RattataNormal4–5––40%
MetapodHGBug515%15%–
SpinarakHGBugPoison3––30%
HoothootHGNormalFlying5––10%
HoothootSSNormalFlying4–5––40%
WeedleSSBugPoison4–530%35%–
LedybaSSBugFlying430%––
KakunaSSBugPoison510%15%–
Hoenn SoundLinoone 20%, Lv. 3 Whismur 20%, Lv. 3–4 (HG) / 4 (SS)Play the Hoenn Sound radio channel (after the National Pokédex): replaces four 10% grass slots.
Sinnoh SoundBidoof 20%, Lv. 3 Buizel 20%, Lv. 3–4 (HG) / 4 (SS)Play the Sinnoh Sound radio channel (after the National Pokédex): replaces four 10% grass slots.
Surfing encounter rate 15
PokémonTypeLv.Chance
PoliwagWater10–2590%
PoliwhirlWater15–3210%
Fishing
RodPokémonLv.Chance
Old RodMagikarp1085%
Poliwag1015%
Good RodPoliwag2060%
Magikarp2040%
Super RodPoliwag4080%
Magikarp4020%
Headbutt: common trees 15 trees
PokémonTypeLv.Chance
HoothootNormalFlying3–450%
PinecoBug3–430%
ExeggcuteGrassPsychic3–420%
Headbutt: rare trees
PokémonTypeLv.Chance
HoothootNormalFlying5–650%
SpinarakHGBugPoison5–630%
ExeggcuteGrassPsychic5–620%
LedybaSSBugFlying5–630%

Use Headbutt on a tree (taught by the tutor in Ilex Forest). Which trees are “common”, “rare” or empty depends on the last digit of your Trainer ID.

Chances are the game’s encounter slots: grass and caves 20/20/10/10/10/10/5/5/4/4/1/1, with every slot changing by time of day (morning 4:00–9:59, day 10:00–19:59, night 20:00–3:59); surfing 60/30/5/4/1; all three rods 40/30/15/10/5; Rock Smash 80/20; Headbutt 50/15/15/10/5/5. HG and SS mark Pokémon found in only one version. Where to find every Pokémon.

Trainers

TrainerPokémonPrize
Bug CatcherWadeCaterpieCaterpie 2CaterpieCaterpie 2WeedleWeedle 3CaterpieCaterpie 2
Pokégear phone rematches (3)
₽32

Prize money is four times the level of the trainer’s last Pokémon times the trainer class’s rate (doubled in double battles). Trainers who give you their Pokégear number call when they want a rematch, with stronger teams as you progress.

Items

ItemHowWhere
PotionItem ballRoute 31
Poké BallItem ballRoute 31
TM44 RestGiftRoute 31
Vs. RecorderGiftViolet gatehouse

Hidden items can be found with the Dowsing MCHN Pokégear app.

Tips

  • Deliver the Spearow with Mail from the Route 35 gatehouse to the sleeping man south of the pond to get TM44 Rest.
  • Your friend Lyra or Ethan gives you the Vs. Recorder in the gatehouse to Violet City.
  • A Black Apricorn tree beside the sleeping man gives one Apricorn a day.
  • Bug Catcher Wade registers his number and sometimes calls to give you a Berry.
  • HeartGold has Caterpie, Metapod and Spinarak here, while SoulSilver has Weedle, Kakuna and Ledyba.
  • Cut opens a shortcut at the first fork, but you can walk around through the tall grass without it.

Walkthrough: Part 3: Violet City, Sprout Tower and Falkner

More pictures

Route 31: Route 31 in HeartGold and SoulSilver (screenshot 2)
Route 31 in HeartGold and SoulSilver (screenshot 2)

FAQ

Who gets the Spearow on Route 31?

The sleeping man south of the pond; give him the Spearow from the Route 35 gatehouse and he rewards you with TM44 Rest.

Where do you get the Vs. Recorder in HeartGold and SoulSilver?

From Lyra or Ethan in the gatehouse between Route 31 and Violet City.

Where is Dark Cave’s entrance on Route 31?

On the eastern part of the route, north of the main path.

What Pokémon can you catch in Route 31 in HeartGold and SoulSilver?

15 species: Caterpie, Pidgey, Bellsprout, Rattata, Metapod, Spinarak, Hoothoot, Weedle, Ledyba, Kakuna, Poliwag, Poliwhirl, Magikarp, Pineco, Exeggcute.

Sources & picture credits

Guide text is original retrogameindex writing, checked against Bulbapedia and the game data. Wild Pokémon and encounter chances, items, trainers, rematch teams, gifts and shops come from the pret/pokeheartgold decompilation, and the Pokémon sprites and dungeon entrance pictures are drawn from the game’s own graphics in it. The position maps are the Gold/Silver wiki’s Pokégear map renders. Location pictures and trainer sprites © Nintendo / Creatures / GAME FREAK, archived from the Pokémon Wiki on Fandom (listed on the image gallery).