Walking burns calories because it is weight-bearing. You have to lift your body weight (even if only a fraction of an inch) with every step.
But I agree with Unident - with a wagon (unlike say, carrying a 76 pound backpack), the weight goes down the wheels, rather than your legs, and on level ground the extra calorie burn is minimal.
Just log it as 2 miles regular walking.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.
| current weight: 178.0