The Salamander Crossing Brigade, organized for the Monadnock region by the Harris Center for Conservation Education, gathers around 150 people each year to help salamanders, frogs and other amphibians cross roads in southwest N.H. en route to vernal ponds.
You should check this story by Elizabeth Frantz about the gathering because it has tons of her photos of the nighttime efforts. One is shown here, but there are a bunch of others that are just terrific.