Commercial Fixed Wing
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Situational Awareness
Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT
General None Reported / Taken
Human Factors
It was an uncontrolled airfield; visual approach; left traffic to Runway 17. Daylight calm winds and ceiling and visibility unlimited. Terrain factors were discussed on our briefing. We built the escape maneuver on the secondary flight plan. On the UNICOM frequency we were aware of a (Air Carrier) jet that was north of the field landing south on 17. They decided to slow so we could go first. We made a shorter approach than usual and while turning towards the final approach fix and putting out flaps 3; we descended away from the terrain as it sloped down hill and we got a terrain warning and reacted appropriately. We were very aware of the terrain and were completely surprised that the GPWS sounded off. We continued the approach and landed normally.We should have just extended our downwind leg and went number 2 to the runway.Maybe a little better understanding of the normal traffic patterns on the company pages.
Air carrier Captain reported GPWS alert during approach to land to MTJ airport.