A few miles up I-70 from Glenwood Springs is the Shoshone parking lot. We put in here for class III-IV to Grizzly Park, which took about 22 minutes. From Grizzly Park it is a splendid ride in class II-easy III. Scenery is spectacular and you can take out at Two Rivers Park just south of Glenwood Springs. This section only takes 55 minutes. Highly recommend it!