This map is quite the find, I found it in an old blizzard game manual for an unreleased game (Warcraft 2.75 Culling of Ashenvale). The game was canceled due to lack of content, it had 7 minutes of gameplay, and 32 minutes worth of cinematic. The early rendering of Culling of Ashenvale cinematic was reused for the Frozen throne cinematic.
Of course this was a map made by blizzard when they stilled used their epic Ms paint skills to create maps (Lost vikings-Warcraft 2 era).