During the time the pioneers came across the plains, Independence Rock was a welcomed sight. The pioneers heading for Oregon or California knew that if they reach it by Independence day (4th of July), they would most likely reach their destinations without seeing snow.
Many of the travellers who passed Independence Rock carved their names into the rock, and because of that it's become a wonderful historical record of when people came across Wyoming.
Though the wind has worn away many of the names, there are still plenty of names and dates to see.
There is a well maintained trail system that goes around the whole Rock. Leashed dogs are allowed. There is also a visitors center and restroom (Independence Rock is actually located at a rest area off of Hwy 220 about 60 miles south of Casper).