The Aerossir (S. "River [of] Lake-foam", Os. "Airossir") was a small river (135 miles) forming the eastern boundary of Rónalindon with Sîrgala or Sîrranwaith. It flowed through the Tumnogoth Iaur. Tributaries included the Nogothir and Belechir. Its name referred to the lake which was its source, and to the turmoil with which the water thundered to the bay. The river was a formidable obstacle to invasion, as even its fords were swift and treacherous.
References[]
- MERP (unfinished): A Traveler's Guide to Lindon, by Jeff J. Erwin