| Triangle Lake Bog | |
|---|---|
| Triangle Lake Bog State Nature Preserve | |
 | |
  Map of Ohio  Triangle Lake Bog State Nature Preserve (the United States) | |
| Location | Portage County, Ohio |
| Nearest city | Ravenna |
| Coordinates | 41°07′08″N 81°15′22″W / 41.11890°N 81.25612°W |
| Area | 61 acres (25 ha) |
| naturepreserves | |
Triangle Lake Bog or Triangle Lake Bog State Nature Preserve is a 61-acre (25 ha) state nature preserve in the U.S. state of Ohio. It is located in Rootstown Township, south of Ravenna.