What is the fine-grained topic of the following text: Gwoza, the rockiest part of Borno State is about 135km south-east of Maiduguri, the state’s capital, and about 60km away from Bama, where the Borno state governor, Kashim Shettima had spent 7 days supervising reconstruction work recently. Only return the topic.
Borno State geography and Governor Kashim Shettima's activities