Regional Codes ...
For statistical purposes, the US Census Bureau has divided the country into four Regions. Grays Flat is located in Region #4 (the West Region).
In turn, the US Census Bureau has further divided each Region into Divisions. Grays Flat is located in Division #9 (the Pacific Division).
The Office of Management and Budget (OMB) has created ten Federal Regions. Grays Flat is located in Region IX (Region 9).
The Federal Emergency Management Agency (FEMA) has created ten Management Regions. Grays Flat is located in Region IX (Region 9).
Referenced GNIS Records ...
GNIS ID #1658660 (Name of Record: Grays Flat)
Class: populated place
A place or area having clustered or scattered buildings and a permanent population (such as a city, settlement, town or village). The boundaries may or may not coincide with the perceived population.
A 'populated place' record may have a corresponding 'census' or 'civil' record. The information contained in the 'populated place' record applies only to the class and should not be confused with either the 'census' and 'civil' classes.
Map Name: Twain
Lat: 40.0176675 Lon: -121.0635694 [Map]
Elev: 899 ft.
Referenced FIPS Records ...
FIPS Code: 06/30868 (Place Name: Grays Flat)
County: Plumas (FIPS State/County: 06/063)
Identifies a populated place (ie- Grays Flat) that is wholly or substantially located outside the boundaries of any incorporated place or CDP (Census Designated Place) that has an authoritative common name recognized by the U.S. Geological Survey (USGS).