Mills Lake is a California waterbody along the Sierra Crest east of Ruby Peak and Mount Mills near Little Lakes Valley. The discharge of Mills Lake flows through Ruby Lake, Rock Creek Lake, and into Rock Creek.
| Mills Lake | |
|---|---|
  Mills Lake | |
| Location | Inyo County, California, United States |
| Coordinates | 37°24′10″N 118°46′34″W / 37.4027°N 118.7762°W |
| Type | Lake |
| Part of | Crowley Lake Watershed |
| Primary inflows | Mount Mills, Bear Creek Spire |
| Primary outflows | Rock Creek (California) (Owens River) |
| Surface elevation | 11,667 ft (3,556 m) |