Does look like Sron Na Lairig. Got caught out there myself in sugary snow. We took 14 hours to get back to the car with a following group needing assistance. The ridge is comitting and there are a few pitches which you cannot reverse on abseil and retreating to the gullys may not be an option. Belays weren't great either. All got down safe but it took effort and cost me feeling in my finger tips.