The canyons.zip file you have requested: Maps Levels Missions / Conquest Maps / C to D Titles / Canyons - 5.81mb is not available. Perhaps try browsing all files for the game Battlefield Vietnam and upload any files you want to share or are missing. This is the only information we could locate:
Zip file includes: map file, readme, description and several screenshots. A Battlefield: Vietnam map set in a fictional part of Cambodia. Helicopters, tanks and jeeps along with burnt out villages and ruins mixed together with a deep fog and very nasty canyons.