Valmiki Ramayana Yuddha Kanda Sarga 4 Shloka 67
Original Shlokaआरोहन्तश्च शृङ्गाणि गिरीणां गिरिगोचराः । महानादान्प्रमुञ्चन्ति क्ष्वेळ्वामन्ये प्रचक्रिरे ।।6.4.67।।
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गिरिगोचराः inhabitants of mountains, गिरीणाम् of the mountains, शृङ्गाणि on the peaks, आरोहन्तश्च climbing on top, महा नादान् loud noise, प्रमुञ्चन्ति snapping ,अन्ये others, क्ष्वेळ्वाम् roared like lion, प्रचक्रिरे went round and round
Vanaras, being the inhabitants of mountains, climbed on peaks of mountains and made loud noises like snapping and roaring like lions. Some went round and round.