James Cole from Chorley popped the question to fellow nurse Amelia Harris on top of Haystacks fell.
Mr Cole, who has shared the footage on social media, said the reaction to the proposal had been "overwhelming". He said he had to employ subterfuge to obtain his footage, adding: "I used a drone, on an autopilot setting to take the video. A nurse proposed to his fiancรฉe in style on a fell top during sunrise and captured the big moment with a drone.