Mystery photo

(See the answer in the update line below! — Dave)

Here’s a test of your Chinook Jargon-related geographic knowledge:

Mystery photo

Can you identify this place?

Thanks to the kind reader who submitted this via cell phone!  (To be named when I reveal the answer to our question.)

–D. Douglas ROBERTSON, PhD–

Update, 04/28/2013: The answer is indeed Memaloose Island/ Memaloose Illahee, as David Lewis got right away.  (See comments.)  Thanks to my sister Denise for sending this snapshot from the scene!