The phrase "western edge" refers to the farthest point on the western side of something, such as a region, city, or country. It signifies the boundary or limit in the direction of the west. Full definition
Where It Is On western edge Sea Cortez, halfway down Baja Peninsula, town Rosalia known as base divers of i san diego, but my entire family ensenada, she told playboy. (petesgrillandpizza.com)
Raja Ampat is home to more than 1500 islands and islets in an area approximately 40,000 km2 located on the far western edge of West Papua province in eastern Indonesia. (underwatertribe.com)
The Cutchogue sign hangs on posts that previously held a fading sign that sat at Cutchogue's western edge for about 15 years. (suffolktimes.timesreview.com)