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Watershed Descriptions

Half Moon Bay – Back to Study Area

Map of Half Moon Bay watershed

Area1: 74,862 km2

Planning Watersheds1: 3

Description: The Half Moon Bay watershed touches the Pacific coast with the majority of the watershed inland in north-central San Mateo County. The community of Half Moon Bay, the Burleigh H. Murray Ranch, and a portion of both Half Moon Bay State Beach and Mills Creek Open Space Preserve are located in the watershed. To interactively explore features of this watershed, visit the Interactive Mapping section of this Web site.

Streams2:

  • Apanolio Creek (5.6 km)
  • Arroyo Leon (10.4 km)
  • Corinda Los Trancos Creek (3.1 km)
  • Madonna Creek (4.0 km)
  • Mills Creek (6.2 km)
  • Pilarcitos Creek (22.9 km)

Salmonids3:

  • steelhead trout (Oncorhynchus mykiss)

Watershed Groups: Pilarcitos Creek Advisory Committee

Watershed Plans:

Ownership4: Local, State, and Private

Landcover and Landuse5:

Pie Chart

Source Information:

1California Department of Forestry and Fire Protection Watersheds (CALWATER 2.2) for Hydrologic Sub-Area Name and Planning Watershed Name (see metadata for srp_calw22)
2U.S. Environmental Protection Agency Stream Reach File 3 (see metadata for srp_rf3)
3Personal communication: Jerry Smith (San Jose) and Don Alley (Brookdale), 2004.
4California Department of Forestry and Fire Protection Conservation and Public Lands (Legacy Project) (see metadata spr_govtowna)
5California Department of Forestry and Fire Protection Multi Source Landcover Data (2002) (see metadata srp_fveg)

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