Mt Shuksan's Hanging Glacier.
You look at this and keep wondering: what exactly is it that is holding it in place and what will happen when it gives up?
Body: Pentax K-5 at ISO 100
Lens: Pentax SMC DA*16-50mm F2.8 ED AL[IF] SDM at 22mm
3 exposures: 1/60 f/7.1, 1/250 f/7.1, 1/1000 f/7.1, fused with Photomatix.