Lewiston Basin

Columbia River Basalt Group

Lewiston Basin Field Trip (idahogeology.org) Lewiston, Idaho, and Clarkston, Washington, are at the confluence of the Snake and Clearwater rivers in the Lewiston basin. Hells Canyon stretches to the south of Lewiston on the Snake River. This is the lowest point in Idaho at 720 feet (220 m) elevation. Lewiston is Idaho’s seaport, a result of slack water created by several dams and locks on the Columbia- Snake River system.

Rwanda (Wikipedia) Rwanda, officially the Republic of Rwanda, is a landlocked country in the Great Rift Valley of Central Africa, where the African Great Lakes region and Southeast Africa converge. Located a few degrees south of the Equator, Rwanda is bordered by Uganda, Tanzania, Burundi, and the Democratic Republic of the Congo. It is highly elevated, giving it the soubriquet “land of a thousand hills” (French: pays des mille collines), with its geography dominated by mountains in the west and savanna to the southeast, with numerous lakes throughout the country. The climate is temperate to subtropical, with two rainy seasons and two dry seasons each year. It is the most densely populated mainland African country; among countries larger than 10,000 km2, it is the fifth-most densely populated country in the world. Its capital and largest city is Kigali.