Answer: basecamp

AnswerCrossword Clue
BASECAMPStarting point for a big climb
BASECAMPClimber's refuge
BASECAMPHQ
BASECAMPMountain climber's starting place
BASECAMPMilitary supply locality.
BASECAMPSite near Mt. Everest
BASECAMPClimb start