Was on the Notch Couloir awhile back, April 28th I think. Didn't get to post this sooner as I've been on trips, distracted, etc. Anyways, looked like a party had been up the day before and found a lens cover. If you want it back let me know. Local in Denver or can mail.
Also, last weekend found a recently stuck cam on the cave exit from the Book in Lumpy. Let me know what you left and I can get it back to you.