The Highland Park and Lake Burien Railway was a branch of the Interurban System that went from Everett to Tacoma in Washington state. A branch came off about Spokane Street going west to near the Steel Mill. It went up nearly parallel to Delridge Way to White Center then on to Burien to end just north of "Kirks Feedstore". It had one passenger car and frequently had a flat car attached for it also carried freight.
The real estate developers were instrumental in getting it built. It was called "The Highline" to distinguish it from "The Mainline" which in the south end went out the Duwamish/Green River Valley to Renton Junction, on to near Kent and Auburn to Puyallup onto Tacoma. The name Highline for the school district was used as a non-regional name when the numerous small school districts (all just grade schools) wanted to have a high school and could not agree on a name. This high school was first called Union High School until a name could be designated by consensus.