The narrow passageway shown in Mystery Photo #45 is located somewhere in the National Park System. Can you pinpoint this location? To get full credit for this one you need to state the name of the passageway and identify the national park in which it is located.

Readers who answer correctly will be eligible for our monthly prize drawing. 

The answer will be posted in tomorrow's Traveler.

No cheating! If we catch you Googling or engaged in sneakery of any description, we'll make you write on the whiteboard 100 times:

Lake Chaubunagungamaug, a 1,442-acre lake near the southern Massachusetts  town of Webster, bears an inordinately long name (perhaps the longest place name in the United States) that is often translated as "you fish on your side, I fish on my side, and nobody fishes in the middle."  However, its approximate meaning in Nipmuc (an Algonquian language) is closer to "fishing place at the boundaries -- neutral meeting grounds." This water body is also called Webster Lake, especially by people who don't know how to pronounce Chaubunagungamaug.