Update (Monday, 10:25 a.m.): The answer is Independence Rock, in central Wyoming. It is significance because of a Fourth of July celebration first held there in 1830, and it is (or has been, as many have worn off) covered with names and dates of travelers crossing its path on a journey to a new life in the west.
LARAMIE, Wyo.--During more than a month on Road Trip 2009 across Colorado, Utah, Idaho, Montana and Wyoming, I've seen more than my share of impressive rock formations.
I've even used a couple of them already as Road Trip Picture of the day challenges. Well, I see no reason not to continue that trend, so your task today is to identify this big rock. Tell me what it is, where it is, and what its historical significance is.
If you're the first person to e-mail me (to daniel--dot--terdiman--at--cnet--dot--com) the right answers to all three of those questions, you'll win a prize.
Ever since I began doing these daily challenges, I've been amazed at how quickly some of you have figured out the answers and how--when you haven't personally seen the subject of the picture--you've been able to figure out what it is. So, I'd also love to hear how you arrived at your answer to today's challenge.