The crater has an area extending towards the south and the lava dome is located on the southern foot of the mountain.Many plant nephentes are found. in this mountain there is one peak area that has a thorny rattan plant.
Mount Lubuk Raya, in wedge by two mountains, namely Mount Sibual-buali in Sipirok and Sanggarudang mountain in Tobotan Village Tapanuli Selatan.
Pengaruh Tektonik Pada Runtunan Endapan Aluvial Depresi Padang Sidempuan, Sumatera Utara; U. M.Lumbanbatu, C. Basri, S. Hidayat dan D.A. Siregar, Pusat Survei Geologi; JSDG Vol. 19 No. 3 Juni 2009 (link: drive.google.com)