The formations at Montana’s Lewis & Clark Caverns State Park seem like a Dr. Seuss version of Rivendell.Doesn’t this limestone stalagmite beg you to pour hot fudge sauce on top and attack it with a spoon?Not much to see besides ravines and markers at Little Bighorn Battlefield (commonly known as Custer’s Last Stand). Yet there was so much to learn, we stayed until the park closed six hours later
