The rock hyrax (Procavia capensis Pallas, 1766) was studiedjiml/ September 2003 to FebruGI}'rn2004 in Dinsho area, in and around Bale Mountains National Park (BMNP). Data on thernpopulation, age and sex categol)l, group size, diurnal activity paffern, food habits, habitatrnutilization and impact of the local people on their population were studied. Total CO/lilt wasrnemployed to determine the population size. The total population recorded in wet season was 368rnwhereas it was 332 in the dl)1 seasons. Dut of the total population, 40.3% were adults, 34.8%rnwere sub-adults and 24.9% were juveniles. The sex of only 157 rock hyraxes was confirmed.rnAdult sex ratio was biased towards females but it was nearly 1: 1 in the juveniles. Dut of the sexedrnhyraxes, 55.7% were females and 44.3% were males. Relatively higher percentage of breedingrnfemales (over 42%) out of the sexed ones in the polygamous rock hyrax colony showsrnsustainability a/the hyrax population.rnThe major activity of the dominant territorial male was lvatching. Feeding took place for briefrnintervals. The rock hyraxes were IllOre active during ear~)' ill the morning and late in therna/iernoon. During the noon hours, they were not most~J' seen outside the shelter. The rockrnhyraxes intensively feed in groups during early morning and late a./iernoon hours. The diet ofrnrock hyraxes constituted a wide variety of plants around the vicinity of their shelter. There wasrnsigllificant difference between grazing alld browsing during the wet and dl}' seasons. Afore rockrnhyraxes were engaged in browsing during the dl)1 season than during the wet season. In the dl)1rnseason, there were load migrationsjiml/ areas with less vegetation cover and no water, to bushyrnareas where water was available. It Vas revealed that habitat destructioll, hunting and disturbances in and around the areas of their shelter affect the behaviour and threaten thernsurvival of rock hyraxes.