Six of ten people arrested as part of a drug investigation in the New South Wales Snowy Mountains work at one of the region's ski resorts.

Seven men and three women aged between 19 and 31 are being questioned at Jindabyne and Cooma police stations.

It follows seven simultaneous raids at various locations including a Jindabyne hotel.

Ecstasy, cocaine, speed and cannabis were found during the raids.

The drugs are estimated to be worth more than $40,000 on the street.

Police say the raids targeted a sophisticated drug network which has been supplying locals and visitors during the ski season.

They expect to make further arrests and those in custody are expected to be charged with a range of drug offences and will face Queanbeyan court at a later date.