sentences:  One of the important regions is the Cameroonian Highlands forests which extends across the Cameroon Highlands, covering an area of in western Cameroon and eastern Nigeria.The ecoregion lies above elevation, and is surrounded at lower elevations by the Cross-Sanaga-Bioko coastal forests at the southern end of the range, and by forest-savanna mosaic along the central and northern ends of the range; the Cameroon Highlands form the boundary between the Guinean and Northern Congolian forest-savanna mosaic ecoregions, consisting of sub-montane to montane forests and finally sub alpine grasslands.The region is categorized as critical/endangered, but the area under full protection is not great.