Montmajor is made up of four distinct enclaves, quite separated from one another. The principal area of the town essentially surrounds the town of Navès, which is in the comarca of Solsonès. The northernmost enclave is Catllarí (5.45 km²), which is surrounded by the municipalities of Fígols, Castellar del Riu, and Guixers. Comesposades (8.01 km²), is separated from the main town by L'Espunyola. Valielles (3.20 km²), meanwhile, is an enclave completely surrounded by Solsonès.