2000 ft clear of the flight planned route or 1000 ft clear en-route to an airfield at which a landing can be made. There is no options, if you need to keep high, use the obstacle strategy, if not std. The winds over high terrain effect the MORA, as does temp, so this is already taken into account when drifting down by the "advanced situational awarness of the crew" There is no rush, this is a drift down to stability, initially setting green dot or min clean plus MCT will buy you time and altitude, unless there is a reason to get down early, like single pack or APU capability, there is plenty of time to revisit the option.