Colorful autumn landscape forest on the edge of the riverColorful autumn landscape forest on the edge of the river
A mountain river flows and pine trees along the edgesA mountain river flows and pine trees along the edges
The girl walks along the edge of the roof with her hands raisedThe girl walks along the edge of the roof with her hands raised
Предельная линия, предельная часть чего-н.. Страна, область. Крупная административно-территориальная единица, имеющая в своём составе автономную область.