Valmiki Ramayana Kishkindha Kanda Sarga 42 Shloka 15
Original Shlokaसिन्धुसागरयोश्चैव सङ्गमे तत्र पर्वतः। महान्हेमगिरिर्नाम शतशृङ्गो महाद्रुमः।।4.42.15।।
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सिन्धुसागरयोः of sindhu and the sea, सङ्गमे at the confluence, तत्र there, हेमगिरिर्नाम known as Hemagiri, शतशृङ्गःof hundred peaks, महाद्रुमःgreat trees, पर्वतःmountain,
'There is a lofty mountain with a hundred peaks and great trees at the confluence of river Sindhu and the sea. It is known as Hemagiri (golden mountain).