| Grand Central River | |
| Map Size: | 300 |
| Pushpin Map: | USA Alaska |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Grand Central River in Alaska |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Alaska |
| Subdivision Type4: | District |
| Subdivision Name4: | Nome Census Area |
| Length: | 12miles |
| Source1: | Confluence of the stream's east and west forks |
| Source1 Location: | Kigluaik Mountains, Seward Peninsula |
| Source1 Coordinates: | 64.9683°N -165.2378°W |
| Source1 Elevation: | 693feet[1] |
| Mouth: | Salmon Lake |
| Mouth Location: | 28miles northeast of Nome |
| Mouth Coordinates: | 64.8964°N -165.0761°W[2] |
| Mouth Elevation: | 443feet |
Grand Central River is a waterway on the Seward Peninsula in the U.S. state of Alaska. It enters Salmon Lake from the west.[3] Although the Grand Central and Kruzgamepa (or Pilgrim) rivers form one stream, their names differ, and their physical features vary.[4] The Grand Central flows into Salmon Lake,[3] while the Kruzgamepa flows out.[5]
The river is about long and 2miles wide. The drainage area of this stream is almost surrounded by ridges of the Sawtooth Range (Kigluaik Mountains), having elevations of 1500to. The river is formed near the foot of Mount Osborn, at an elevation of about, by the junction of North and West forks, and flows in a southerly direction into Salmon Lake. From the forks to Salmon Lake, the river has a fall of about, and at high stages, spreads over a wide gravel bed. On either side, there is a little bottom land, from which the mountains rise abruptly. The principal tributaries of Grand Central River below the forks are Gold Run and Rainbow Creek from the east, and Thompson, Thumit, Nugget, Jett, and Morning Call creeks from the west. These tributary streams, with the exception of Nugget Creek, drain short, steep-sided gulches. They have considerable fall and are fed from melting snow.[6]