The Fishhook was the name given to a salient of Kampong Cham Province, southeast Cambodia that protrudes into Bình Long and Tây Ninh provinces, Vietnam, approximately 80 km northwest of Saigon. The area consisted of generally flat plains adjacent to Mimot northeast through roughly rolling plains; and east to the roughly dissected hills and low mountains near O'Rang. Multi-canopied, dense undergrowth forest was the dominant natural vegetation throughout the area. Rubber plantations were found primarily in the western section