What makes Eight Miles High by The Byrds notable?

'Eight Miles High' is often regarded as one of the first examples of psychedelic rock, influencing countless artists and shaping the genre's identity. It peaked at number 14 on the Billboard Hot 100 and has received critical acclaim for its innovative use of instrumentation and harmonies. Released on March 14, 1966, 'Eight Miles High' marked The Byrds' third album and their artistic peak during the mid-60s psychedelic movement. Following their commercial success with 'Mr. Tambourine Man,' this album showcased a significant evolution in their sound, moving towards more experimental and intricate arrangements.