| Sledgehammer Mission Support Site | |
| Type: | Army |
| Pushpin Map: | Vietnam |
| Built: | 1967 |
| Used: | 1967-9 |
| Occupants: | MACV-SOG |
| Battles: | Vietnam War |
Sledgehammer Mission Support Site (also known as Sledgehammer MSS, Cu Grok, Hill 1438 or Heavy Drop) was a MACV-SOG base located west of Pleiku, in Kontum Province.
The base was located on a steep and narrow ridgeline overlooking the Plei Trap Valley, approximately 46 km west of Pleiku and 20 km east of the Cambodian border.[1]
The base was first established in March 1967 as an operations base and radio relay site to allow SOG teams to remain in contact while on operations in Cambodia.[1]
The base was closed in March 1969.[1]
The base has reverted to jungle.