The mountains.zip file you have requested: Maps Levels Missions / Miscellaneous / M to N Titles / Mountains - 10.15mb is not available. Perhaps try browsing all files for the game Halo: Combat Evolved and upload any files you want to share or are missing. This is the only information we could locate:
For more information on Halo, visit Halo2.filefront.com A large mountain terrain area. With a varied collection of warthogs, you can own the terrain and beat your foes in a heated Slayer match, or you can do all out Destruction Derbies!