This is the 10228th most frequent Russian word.
близлежащего
"Nearby" or "adjacent."
Here, "близлежащего" describes "региона," specifying that the region is close to the location.
Мы пошли в магазин рядом с университетом, чтобы купить продукты из близлежащего региона.
We went to the store near the university to buy products from the nearby region.
In this sentence, "близлежащего" is used to specify that the neighborhood being described is close to the speaker's reference point.
Она часто гуляет по улицам близлежащего микрорайона.
She often walks along the streets of the nearby neighborhood.
Here, "близлежащего" modifies "сада," indicating that the garden is located nearby.