Ramayana 2.113.3

मन्दाकिनीं नदीं रम्यां प्राङ्मुखास्ते ययुस्तदा।प्रदक्षिणं च कुर्वाणाश्चित्रकूटं महागिरिम्।।।।

mandākinīṃ nadīṃ ramyāṃ prāṅmukhās te yayus tadā | pradakṣiṇaṃ ca kurvāṇāś citrakūṭaṃ mahāgirim ||

Then, facing east, they went on toward the lovely river Mandākinī, while performing pradakṣiṇā—reverent circumambulation—of the great mountain Citrakūṭa.