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Route 37

Location, Johto

Route 37: 21 species in 3 games

Gold and Silver Crystal HeartGold and SoulSilver

Road 37: 21 species across 5 versions

Gold: 11 species
Species	Method	Levels	Chance	Game page
Caterpie	Headbutting a high encounter rate tree	10	50%	All places
Caterpie	Headbutting a low encounter rate tree	10	65%	All places
Caterpie	Headbutting a normal encounter rate tree	10	65%	All places
Metapod	Headbutting a low encounter rate tree	10	15%	All places
Metapod	Headbutting a normal encounter rate tree	10	15%	All places
Butterfree	Headbutting a high encounter rate tree	10	5%	All places
Butterfree	Headbutting a low encounter rate tree	10	5%	All places
Butterfree	Headbutting a normal encounter rate tree	10	5%	All places
Pidgey	Walking in tall grass or a cave	13 to 15	up to 60%	All places
Pidgeotto	Walking in tall grass or a cave	15	5%	All places
Growlithe	Walking in tall grass or a cave	14 to 16	up to 15%	All places
Exeggcute	Headbutting a high encounter rate tree	10	15%	All places
Exeggcute	Headbutting a low encounter rate tree	10	15%	All places
Exeggcute	Headbutting a normal encounter rate tree	10	15%	All places
Hoothoot	Walking in tall grass or a cave	15	20%	All places
Spinarak	Walking in tall grass or a cave	13 to 15	40%	All places
Pineco	Headbutting a high encounter rate tree	10	30%	All places
Stantler	Walking in tall grass or a cave	15	up to 30%	All places

Silver: 11 species
Species	Method	Levels	Chance	Game page
Weedle	Headbutting a high encounter rate tree	10	50%	All places
Weedle	Headbutting a low encounter rate tree	10	65%	All places
Weedle	Headbutting a normal encounter rate tree	10	65%	All places
Kakuna	Headbutting a low encounter rate tree	10	15%	All places
Kakuna	Headbutting a normal encounter rate tree	10	15%	All places
Beedrill	Headbutting a high encounter rate tree	10	5%	All places
Beedrill	Headbutting a low encounter rate tree	10	5%	All places
Beedrill	Headbutting a normal encounter rate tree	10	5%	All places
Pidgey	Walking in tall grass or a cave	13 to 15	up to 50%	All places
Pidgeotto	Walking in tall grass or a cave	15	5%	All places
Vulpix	Walking in tall grass or a cave	14 to 16	up to 15%	All places
Exeggcute	Headbutting a high encounter rate tree	10	15%	All places
Exeggcute	Headbutting a low encounter rate tree	10	15%	All places
Exeggcute	Headbutting a normal encounter rate tree	10	15%	All places
Hoothoot	Walking in tall grass or a cave	13 to 15	60%	All places
Ledyba	Walking in tall grass or a cave	13 to 15	40%	All places
Pineco	Headbutting a high encounter rate tree	10	30%	All places
Stantler	Walking in tall grass or a cave	15	up to 30%	All places

Crystal: 11 species
Species	Method	Levels	Chance	Game page
Pidgey	Walking in tall grass or a cave	13 to 15	up to 55%	All places
Pidgeotto	Walking in tall grass or a cave	15	up to 5%	All places
Growlithe	Walking in tall grass or a cave	14 to 16	up to 40%	All places
Exeggcute	Headbutting a high encounter rate tree	10	20%	All places
Exeggcute	Headbutting a low encounter rate tree	10	20%	All places
Exeggcute	Headbutting a normal encounter rate tree	10	20%	All places
Hoothoot	Headbutting a high encounter rate tree	10	50%	All places
Hoothoot	Headbutting a low encounter rate tree	10	50%	All places
Hoothoot	Headbutting a normal encounter rate tree	10	50%	All places
Hoothoot	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Noctowl	Walking in tall grass or a cave	15	up to 5%	All places
Ledyba	Headbutting a low encounter rate tree	10	15%	All places
Ledyba	Headbutting a normal encounter rate tree	10	15%	All places
Spinarak	Headbutting a low encounter rate tree	10	15%	All places
Spinarak	Headbutting a normal encounter rate tree	10	15%	All places
Spinarak	Walking in tall grass or a cave	13	30%	All places
Ariados	Walking in tall grass or a cave	15	5%	All places
Pineco	Headbutting a high encounter rate tree	10	30%	All places
Stantler	Walking in tall grass or a cave	14 to 16	40%	All places

HeartGold: 11 species
Species	Method	Levels	Chance	Game page
Pidgey	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Pidgeotto	Walking in tall grass or a cave	15	5%	All places
Growlithe	Walking in tall grass or a cave	14 to 15	up to 10%	All places
Exeggcute	Headbutting trees	12 to 17	up to 20%	All places
Hoothoot	Headbutting trees	12 to 17	up to 50%	All places
Hoothoot	Walking in tall grass or a cave	15	20%	All places
Spinarak	Headbutting trees	15 to 17	30%	All places
Spinarak	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Pineco	Headbutting trees	12 to 14	30%	All places
Stantler	Walking in tall grass or a cave	15	up to 20%	All places
Plusle	Walking in tall grass or a cave	13 to 15	20%	All places
Minun	Walking in tall grass or a cave	15	20%	All places
Shinx	Walking in tall grass or a cave	13 to 15	40%	All places

SoulSilver: 11 species
Species	Method	Levels	Chance	Game page
Pidgey	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Pidgeotto	Walking in tall grass or a cave	15	5%	All places
Vulpix	Walking in tall grass or a cave	14 to 15	up to 10%	All places
Exeggcute	Headbutting trees	12 to 17	up to 20%	All places
Hoothoot	Headbutting trees	12 to 17	up to 50%	All places
Hoothoot	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Ledyba	Headbutting trees	15 to 17	30%	All places
Ledyba	Walking in tall grass or a cave	13 to 15	up to 30%	All places
Pineco	Headbutting trees	12 to 14	30%	All places
Stantler	Walking in tall grass or a cave	15	up to 20%	All places
Plusle	Walking in tall grass or a cave	13 to 15	20%	All places
Minun	Walking in tall grass or a cave	15	20%	All places
Shinx	Walking in tall grass or a cave	13 to 15	40%	All places