Synod of the Pacific is an upper judicatory of the Presbyterian Church (USA) including northern and central California, Oregon, Nevada, southern Idaho, and part of Washington state.
The Synod contains 11 presbyteries, 464 churches, 20 new church developments, and 114,210 members. Map
Presbyteries of the Synod of the Pacific
The presbyteries contained by the Sierra Mission Partnership and the Snake River Mission Area join together in their mission because of their remote nature. They remain separate presbyteries while being a part of the mission partnership.
References
Synod of the Pacific Wikipedia(Text) CC BY-SA