Sahalie Falls and Koosah Falls are located along the McKenzie Pass-Santiam Pass and West Cascades National Scenic Byways off Highway 126.
These falls mark the terminus of two thick flows of basaltic andesite lava that dammed Clear Lake and moved into the McKenzie River 3,000 years ago.
The results are two breathtaking waterfalls with foaming white water cascades in between.
Sahalie (or "Heaven") and Koosah (or "Sky") are Chinook Jargon words - part of a rudimentary trade language that allowed people to exchange news and goods in the area. The Kalapuya, Molalla, Sahaptain and Chinook peoples traveled and traded here, perhaps on their way to obtain obsidian in the high Cascades or to gather huckleberries.