the region where they lived is said in the same passage to have been 'very far away many a journey beyond the river of the rodothlim ' , and glorund 's wrath was great when he heard of 'a brave folk of men that dwelt far beyond the river ' ( p. 103 ) ; this also can be accommodated quite well to the developed geographical conception -- brethil was indeed a good distance beyond the river ( narog ) for one setting out from nargothrond .