in Seattle at the junction of I-5 and I-90, and ends in
Spokane’s Riverfront Park. Along the way you’ll
travel through the Snoqualmie Valley, up into the Cascade Range, and
across the summit at Snoqualmie Pass. From there your road leads down
the eastern slope of the cascades through ranch and farm lands; then
it drops down through areas carved out of ancient lava flows, crosses
the Columbia River, heads up through sand dunes and rich irrigated farm
lands, and takes you through a region shaped thousands of years ago by
catastrophic floods at the end of the ice age.
The tour, with its guidebook and more than two hours of audio is designed
to enrich your travel across the state or to be heard in the comfort
of your living room.