| Idle Valley Nature Reserve | |
|---|---|
 Bug Arch at the entrance of the nature reserve, with Bellmoor Lake in the distance. | |
  | |
| Location | Retford, Nottinghamshire, England |
| Coordinates | 53°20′21″N 0°57′56″W / 53.33928°N 0.96543°W |
| Area | 320 hectares (790 acres) |
| Created | 2002 |
| Operated by | Nottinghamshire Wildlife Trust |
| Status | SSSI (for map see Map) |
The Idle Valley Nature Reserve, also known as Lound Gravel Pits or Sutton and Lound Gravel Pits, is a wetland Site of Special Scientific Interest (SSSI) situated north-west of the town of Retford in the Bassetlaw district of north Nottinghamshire. The nature reserve is situated along the western bank of the River Idle and east of the villages of Sutton cum Lound and Lound. The nature reserve is managed by the Nottinghamshire Wildlife Trust.