Canto 2 -
Ayodhyā-kāṇḍa
Chapter 100: Rāma Instructs Bharata About the Duties of a King
Text 2.100.54

कच्चित्सर्वाणि दुर्गाणि धनधान्यायुधोदकैः।
यन्त्रैश्च परिपूर्णानि तथा शिल्पिधनुर्धरैः॥

kaccic sarvāṇi durgāṇi dhana-dhānyāyudhodakaiḥ
yantraiś ca paripūrṇāni tathā śilpi-dhanurdharaiḥ

kaccit = are; sarvāṇi = all; durgāṇi = the inaccessible areas; dhana-dhānya-āyudha-udakaiḥ = with wealth, grains, weapons, water; yantraiḥ ca = machines; paripūrṇāni = adequately provided; tathā śilpi-dhanurdharaiḥ = artisans and archers.

Are all the inaccessible areas adequately provided with wealth, grains, weapons, water, machines, artisans and archers?

According to Kāmandaka, the inaccessible areas are regions that are watery, mountainous, [overgrown] with trees, saline lands and deserts 15.1

1 Kāmandaka was a follower of Cāṇakya Paṇḍita. He wrote a famous book named Nīti-sāra, a versified summary study of Cāṇakya’s Artha-śāstra.