| Mill Creek | |
| Map Size: | 250 |
| Pushpin Map: | USA California |
| Pushpin Map Size: | 250 |
| Pushpin Map Caption: | Location of Mill Creek in California |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | California |
| Length: | 8miles |
| Source1: | San Gabriel Mountains |
| Source1 Location: | Angeles National Forest |
| Source1 Coordinates: | 34.3969°N -118.0869°W[1] |
| Source1 Elevation: | 5171feet |
| Mouth: | Big Tujunga Creek |
| Mouth Location: | Near Hidden Springs |
| Mouth Coordinates: | 34.3092°N -118.1431°W |
| Mouth Elevation: | 2661feet |
Mill Creek is a mountain stream in the Angeles National Forest of Los Angeles County, California, and a major tributary of Big Tujunga Creek. It flows in a southwesterly direction for about 8miles[1] from near Mill Creek Summit[2] in the San Gabriel Mountains to join Big Tujunga Creek near the village of Hidden Springs. The Mill Creek valley provides a major part of the route of Angeles Forest Highway (County Road N3). Mill Creek Summit, 4910feet, is the highest point along the road.
The named tributaries of Mill Creek, from upstream to downstream, are Monte Cristo Creek, Middle Fork Mill Creek, and North Fork Mill Creek.[3]