This section is primarily flat. Two things to look out for here are trains and tunnels. The tunnels all have warning lights that bicyclists can engage prior to entering a tunnel (there are five in this section). I would strongly recommend turning on a strobing tail light, though. Also, when the train tracks are right next to the road, you will definitely feel the wind from a passing train.

You will start to see the change in vegetation as you crossed the center of the Cascade Mountains at the Bridge of the Gods. Pine trees, sparse vegetation and more browns.

If you are in for challenge, take some of the side roads. The Cook-Underwood road is a great workout and you can get up close and personally with the old logging flumes. Circling up on 141/141A will not only give you a good cardio work out, but some beautiful pictures and take you through the heart of White Salmon. The Gifford Pinchot Forest service map shows all the roads and campground you might want.

The Hood River bridge is long and narrow. Although I do not know this for a fact, others have told me that bicycles are not allowed. Having driven it in a car I am not sure I would want to attempt it even if it were legal. Next time I am up there I will double check this data.

If you are still not getting enough exercise, try to snag a wind surfing board between Cook and Hood River. There are almost always dozens of wind surfers out on the water. If nothing else plan on stopping and watching. Be careful of the congestion as you ride through.