| Mahurangi River | |
|---|---|
.jpg) The Mahurangi River at Warkworth | |
 Route of the Mahurangi River | |
  Mouth of the Mahurangi River .png)  Mahurangi River (New Zealand) | |
| Location | |
| Country | New Zealand |
| Region | Auckland Region |
| Ward | Rodney |
| Physical characteristics | |
| Source | Dome Forest (left branch) |
| • coordinates | 36°21′36″S 174°36′57″E / 36.36000°S 174.61588°E |
| 2nd source | Moir Hill (right branch) |
| • coordinates | 36°28′03″S 174°36′42″E / 36.46738°S 174.61155°E |
| Mouth | Mahurangi Harbour |
• coordinates | 36°26′24″S 174°43′03″E / 36.4401°S 174.7174°E |
| Basin features | |
| Progression | Mahurangi River → Mahurangi Harbour → Hauraki Gulf |
| Tributaries | |
| • left | Duck Creek |
The Mahurangi River in northern New Zealand flows through the town of Warkworth and into Mahurangi Harbour, which opens into the outer Hauraki Gulf. The Left Branch of the river rises in the Dome and flows through the Dome Valley, while the Right Branch rises on Moir Hill. The lower part is a tidal estuary that ranges in depth from below approximately 50 centimetres (20 inches) at the channel entrance to approximately 150 centimetres (59 inches) further upstream.[citation needed] The Mahurangi Harbour provides a sheltered anchorage for private pleasure craft in all weathers.