Lewiston and Clarkston are located at the confluence of the Snake and Clearwater Rivers at an elevation of 738 feet above sea level. The valley is rather narrow with a range of hills to the North sloping abruptly to about 2,000 feet above the valley floor.

Slovakia is a country shaped by mountains, castles, and centuries of shifting borders. Tucked in the heart of Europe, it offers visitors a chance to explore medieval towns, alpine peaks, and deep-rooted traditions still practiced in daily life. Bratislava, the capital, sits along the Danube River and is one of the few national capitals that borders Austria and Hungary.

A tributary of the Amazon, the Napo River (Río Napo) originates in the east Andes mountains. It flows east through Ecuador, then southeast into Peru, where it joins the larger river roughly 50 miles downstream from Iquitos.

Sevan is a town in Armenia's Gegharkunik Province, located beside Lake Sevan, one of the largest high-altitude freshwater lakes in the Caucasus. The town sits at more than 1,900 meters above sea level, with the lake extending across a broad basin surrounded by mountains. Sevan's landscape combines open water, grassy hills, rocky shores, and cultivated areas, while the cool climate distinguishes it from Armenia's lower valleys.

Osijek, located in the eastern part of Croatia, is a city that blends rich history, vibrant culture, and a lively atmosphere. Situated along the banks of the Drava River, Osijek is the fourth-largest city in the country and the cultural and economic center of the Slavonia region.