You need to navigate through Diglett's cave, east of Vermilion City.
But first you must wake up a snorlax.
To do this you need to upgrade your pokegear by going to the radio tower in Lavender Town after completing the Power Plant quest.
You can find a guide on how to do this.
Pallet town
pallet town in kanto
Professor Oak's lab is Pallet Town. - Conoogle
Surf down from pallet town
Surf down from Pallet Town.
you get it from oak at pallet town after you beat red
Just go north of Pallet Town.
Ya it is in the kanto regein in pallet town
In his Lab at Pallet Town in the Kanto region, where else?
It's in pallet town and in professor oak lab
At Pallet town from prof. Oak after you defeat red
meet him an island near pallet town