Srimad-Bhagavatam: Canto 5 - Chapter 1 - Verse 21
Sanskrit:
आमो मधुरुहो मेघपृष्ठ: सुधामा भ्राजिष्ठो लोहितार्णो वनस्पतिरिति घृतपृष्ठसुतास्तेषां वर्षगिरय: सप्त सप्तैव नद्यश्चाभिख्याता: शुक्लो वर्धमानो भोजन उपबर्हिणो नन्दो नन्दन: सर्वतोभद्र इति अभया अमृतौघा आर्यका तीर्थवती रूपवती पवित्रवती शुक्लेति ॥ २१ ॥
ITRANS:
āmo madhuruho meghapṛṣṭhaḥ sudhāmā bhrājiṣṭho lohitārṇo vanaspatir iti ghṛtapṛṣṭha-sutās teṣāṁ varṣa-girayaḥ sapta saptaiva nadyaś cābhikhyātāḥ śuklo vardhamāno bhojana upabarhiṇo nando nandanaḥ sarvatobhadra iti abhayā amṛtaughā āryakā tīrthavatī rūpavatī pavitravatī śukleti.
Translation:
The sons of Mahārāja Ghṛtapṛṣṭha were named Āma, Madhuruha, Meghapṛṣṭha, Sudhāmā, Bhrājiṣṭha, Lohitārṇa and Vanaspati. In their island there are seven mountains, which indicate the boundaries of the seven tracts of land, and there are also seven rivers. The mountains are named Śukla, Vardhamāna, Bhojana, Upabarhiṇa, Nanda, Nandana and Sarvatobhadra. The rivers are named Abhayā, Amṛtaughā, Āryakā, Tīrthavatī, Rūpavatī, Pavitravatī and Śuklā.