Sparsh Bhai,Srisailam(1 of the 12 places to house a jyotirling dedicated to Lord Shiva) ke aas paas ka area is categorized as a Forest but in a broader definition Nallamala Range is part of the much bigger Eastern Ghats so can be termed as a range and the entire range is home to various wild life species with very less human disturbance.Hope that helps.