The Interior Cascades of Route 97 includes North Central Washington and Thompson Okanagan regions on both sides of the 49th parallel. Feast your eyes on miles of rivers, huge lakes, and a pocket desert. There’s, Mount Robson, (the highest peak in the Canadian Rockies) the mighty Columbia River, the Cascade Mountain foothills, high plateaus and Ice Age geologic wonders. Your Route 97 road trip guide offers you breathtakingly diverse cultures, wildlife, natural wonders and memorable stops along the way. This corridor is an adventure all on its own as you travel the Interior Cascades along Route 97. It’s a 705 km (438 mi) long corridor from the junction of I-90 and US 97 at Ellensburg, WA to Cache Creek, BC to where Hwy 97C reconnects to Hwy 97 north.