Known by its former name Group Thirteen, when first habituated this group had only 13 members; they are now approximately 25: 1 Silverback; 12 Adult females; 2 Sub adult female; 3 Juvenile and 7 Babies. It lives close to the Sabyinyo Group but can range very far and high. It has about 25 gorillas with 2 silverbacks. Agashya is known, at the first sign of trouble, to take his whole group up to the top of the volcano.

Once, while we were taking a group of tourists to see Group 13 this exact scenario unfolded. Agashya felt that there was another silverback who was about to challenge him. In response, he took the group up the volcano. Every time we thought we were close to see them, Agashya would move the group further uphill. We did not reach them until the very top, where we finally got a chance to see them. By the time we got back to the car we had walked for 12 hours. While it was an exhausting day, it was magical to see gorillas at the top the world.