Mt. Silver

19 species to catch in 8 areas of this location, across 5 game versions.

Data from Pokemon Gold only: exact levels and the encounter rate for each Pokémon.

in tall grass

Conditional slots 30 for 12 species — time of day, weather, radio and other switches

The game keeps these slots separate from the base ones. Condition sets exclude each other (it cannot be morning and night at once), and the source does not say whether a condition adds a slot or replaces the whole table — so we list them row by row instead of adding them to the rate on the tile.

Pokémon	Conditions	Level	Rate
Golbat	in the morning	48	5%
	during the day	48	5%
	at night	48	5%
Golduck	in the morning	48	30%
	during the day	48	30%
	at night	48	30%
Ponyta	in the morning	42	30%
	during the day	42	30%
	at night	42	30%
Rapidash	in the morning	44	10%
	during the day	44	10%
	at night	44	10%
Doduo	in the morning	41	5%
	during the day	41	5%
Dodrio	in the morning	43	4%
	during the day	43	4%
Tangela	in the morning	41	30%
	during the day	41	30%
	at night	41	30%
Quagsire	in the morning	45	30%
	during the day	45	30%
	at night	45	30%
Misdreavus	at night	45	10%
Sneasel	at night	38–42	9%
Ursaring	at night	42–47	40%
	in the morning	42–47	40%
	during the day	42–47	40%
Larvitar	in the morning	15–20	5%
	during the day	15–20	5%
	at night	15–20	5%

while surfing (Surf)

with the Good Rod

with the Old Rod

with the Super Rod

Directions read from the map layout in the games — from how the screens connect to each other. We know them for Kanto, Johto, Hoenn and Sinnoh; in other regions you will not see this section, because we have no source for the topology.