Valmiki Ramayana 6.73.39
ते द्रुमैः पर्वताग्रैश्च शिलाभिश्च प्लवङ्गमाः।अभ्यवर्षन्त समरे रावणिं पर्यवस्थिताः॥
te drumaiḥ parvatāgraiśca śilābhiśca plavaṅgamāḥ |abhyavarṣanta samare rāvaṇiṃ paryavasthitāḥ ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book