The location you might be referring to is "Viridian City". This city features the Viridian Gym led by the Grass-type trainer Brock, as well as a Pokemon Center and the Viridian Forest.
If you're looking for a specific location related to the lab, please provide more details, such as:
* The specific purpose of the lab: Is it a research facility, a training ground, or something else?
* Any other details about the lab: Is it a specific building, a part of a larger complex, or a secret location?
With more information, I can help you find the location you're looking for in Pokemon Adventure Red Chapter.