Hollowed-out rock (Fallout 4)

The hollowed-out rock can be found behind the Museum of Witchcraft and contains loot and a note.

Layout
The hollowed-out rock is behind the graves at the Museum of Witchcraft. It does not readily stand out as a container up close or at a distance, moving the Sole Survivor's view directly over the rock is required to notice it. The rock is shorter than the gravestones, nearly set into the ground.

Contents
The rock contains: Bubblegum
 * .308 round x37
 * Baseball grenade x4
 * Bottlecap x50
 * Note to S from E
 * Radaway x3
 * Modded hunting rifle
 * Stimpak x3

Appearances
The hollowed-out rock appears only in Fallout 4.