WOW! Thank you Neil Kremer (find his amazing shots on 500px). In his recent posts he made reference to the new 32bit HDR technique available from HDR Soft (Photomatix) if you have Lightroom 4. I've just tried it on this shot and I'm blown away. Previous attempts with HDR Efex Pro and Photomatix itself had produced really dirty results, this is way better!
Anyway, this is the Nubra Valley in the high Indian Himalayas. I took this shot in the early morning I think - as the sun was rising.