| Miller Creek | |
| Pushpin Map: | California |
| Pushpin Map Caption: | Location of the mouth within California |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | California |
| Subdivision Type3: | Region |
| Subdivision Name3: | Marin County |
| Subdivision Type5: | City |
| Subdivision Name5: | Lucas Valley-Marinwood |
| Source1: | Big Rock Ridge |
| Source1 Location: | southwest of Novato |
| Source1 Coordinates: | 38.0611°N -122.6133°W |
| Source1 Elevation: | 1670feet |
| Mouth: | San Pablo Bay |
| Mouth Coordinates: | 38.0314°N -122.4983°W |
| Mouth Elevation: | 0feet |
Miller Creek is a 7.6adj=midNaNadj=mid[1] stream in eastern Marin County, California, United States. It originates on Big Rock Ridge and empties into San Pablo Bay east of Marinwood. A middle school called Miller Creek Middle School was named after the creek and is home to 6th, 7th, and 8th graders.
The name honors James Miller, an Irishman who settled on part of Rancho San Pedro, Santa Margarita y Las Gallinas in 1845.[2]
The Miller Creek watershed drains 11.6sqmi.[3] Miller Creek originates on Big Rock Ridge southwest of the city of Novato. It descends southward to Lucas Valley Road, where it turns eastward into Gallinas Valley, paralleling the road to Miller Creek Road. There it crosses Lucas Valley Road and jogs northward through Marinwood Park before turning east again along the southern edge of Marinwood. It crosses under U.S. Route 101 at milepost 15.35 and flows through channels in McInnes County Park to empty into the west end of San Pablo Bay.[4]
In recent years, steelhead trout (Oncorhyncus mykiss) of multiple ages have been identified in Miller Creek. It has been identified by EPA, Marin County Public Works and California Department of Fish and Game for restoration potential for trout because it has high quality connected riparian habitat, minimal barriers to fish passage and no reservoirs.[5]
The California Coastal Commission considers Miller Creek a Critical Coastal Area because it is an impaired water body (listed under Section 303(d) of the U.S. Clean Water Act) which adjoins the San Pablo Bay National Wildlife Refuge. Livestock have grazed on the watershed since the 1800s, causing widening and downcutting of the creek. It continues to carry a heavy load of sediment from grazing activity, and its lower reaches are also impacted by suburban development.[4]
Miller Creek is spanned by numerous bridges, including:[6]