Ozero Ilirgygyn

Ilirgygyn is a large lake on the northern Kolyma Lowland, linked to other waters by the Vatapvaam River. The river passes through Lake Etapligytkin before reaching Ilirgygyn, then continues through Vatapvaamgytkin toward the East Siberian Sea. Its Chukchi name refers to an island, a feature reflected in the lake's northern landscape.