The figure below shows the state plane zones for the Northwest area.
File:Nw27.gif
NAD 27 / 83
|
Zone Name |
Map Code |
Zone ID
|
Idaho East
|
Idaho Central
|
Idaho West
|
Montana North
|
Montana Central
|
Montana South
|
Oregon North
|
Oregon South
|
Washington North
|
Washington South
|
Wyoming I
|
Wyoming II
|
Wyoming III
|
Wyoming IV
|
|
ID_E
|
ID_C
|
ID_W
|
MT_N
|
MT_C
|
MT_S
|
OR_N
|
OR_S
|
WA_N
|
WA_S
|
WY_E
|
WY_EC
|
WY_WC
|
WY_W
|
|
1101
|
1102
|
1103
|
2501
|
2502
|
2503
|
3601
|
3602
|
4601
|
4602
|
4901
|
4902
|
4903
|
4904
|
|
NAD 83 Zone Changes
|
|
|
|
NAD 83 Name Changes
|
Wyoming East
|
Wyoming East Central
|
Wyoming West Central
|
Wyoming West
|
|
|
|
NAD 83 Boundary Changes
|
Washington North
|
Washington South
|
|
|
|