mathurā-māhātmya-śāstra saṅgraha kariyā
lupta-tīrtha prakaṭa kailā vanete bhramiyā
mathurā-māhātmya—giving a description of the greatness of Mathurā; śāstra—books; saṅgraha kariyā—collecting; lupta-tīrtha—lost holy places; prakaṭa—discovering; kailā—he did; vanete bhramiyā—traveling within the forest.
Śrīla Sanātana Gosvāmī collected some books about archaeological excavations in Mathurā, and, wandering in the forest, he sought to renovate all those holy places.
Link to this page: https://prabhupadabooks.com/cc/madhya/25/215