Driving in the Caldera

Summer driving in the Island Park Caldera presents its special set of challenges. The road construction at both ends of Highway 20 greets visitors to the area. Compressed lanes and traffic delays require caution and patience.

Highway 20 is a three lane road, two lanes in one direction and one in the reverse. The center lane’s assigned direction alternates depending on terrain. With the heavy summer traffic, impatient drivers use the center lane as a passing lane, even if it is designated for traffic traveling in the opposite direction and it is a no passing zone. Travel in the right lane as much as possible. Two vehicles driving at speeds of 65 mph at each other leave no time to react if you are taken by surprise.

The wildlife presents an additional danger to the motorist. When they make a dash across the highway pursuing their natural migration paths, there may be little chance to avoid a collision at posted speeds. Reduce your speed as you pass though the more heavily forested areas of the caldera. A collision with a big moose, deer or elk at highway speeds will total your car and may hospitalize you as well. The reduced visibility of night makes the animals more difficult to see and makes them feel more secure while crossing the roadways. This makes dusk and dark the most dangerous time for animal/vehicle collisions.

If all these hazards weren’t enough, there are the ATVs that cross the roadways and parking lots in Island Park. Running the gauntlet of recreational cross traffic requires extreme attention, especially in the commercial areas. ATV riders’ enthusiasm to get to or from their trail ride interferes with their survival instincts. The speed limit of 45 mph is enforced by local law enforcement in these areas.

Using caution and patience while driving in the Island Park Caldera will help you have a safe and enjoyable visit.