Matsyapurana 114.37

114.37

sahyasyānantare caite tatra godāvarī nadī
pṛthivyāmapi kṛtsnāyāṃ sa pradeśo manoramaḥ //

Now the following are between the Sahya mountain and the Godâvarî, most charming lands in the whole world, where there are (the mountains) Gobardhana, Mandara and Gandhamâdana as well as the celestial trees and herbs, for Râma's benefit.—37-38.