Valmiki Ramayana 2.28.9
सग्राहाः सरितश्चैव पङ्कवत्यश्च दुस्तराः ।मत्तैरपि गजैर्नित्यमतो दुःखतरम् वनम्॥
sagrāhāḥ saritaścaiva paṅkavatyaśca dustarāḥ |mattairapi gajairnityamato duḥkhataram vanam ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book