Mae Drosgol yn gopa mynydd a geir ym Mhumlumon rhwng Aberystwyth a'r Trallwng; cyfeiriad grid SN759878. Uchder cymharol, neu ”amlygrwydd” y copa, ydy 355 metr: dyma'r uchder mae'r copa'n codi uwchlaw'r mynydd agosaf. Drosgol: a summit recorded in OpenStreetMap and filed under cinematic flying. Elevation 550 m. Terrain tagged scenic, mountains — useful for judging the cinematic lines before you drive out. Not yet confirmed by a pilot — check access and the local drone rules before you fly.