The west side of the county has many mountains from the Eastern Carpathians group . These are the Rodna Mountains , the RarÄ u Mountains , the GiumalÄ u Mountains and the three `` Obcine '' . The western side of the county consists of mountains from the Eastern Carpathians group : the Rodna Mountains , the RarÄ u Mountains , the GiumalÄ u Mountains and the three `` Obcine '' with lower heights .