USMS Northwest Zone
This site supports the Northwest Zone, which is one of eight USMS organizational zones (geographic regions) within the United States. Zones are further delineated into smaller regional subgroups called Local Masters Swimming Committees (LMSCs). Each LMSC is responsible for the activities within their province.
The Northwest Zone covered by this site is comprised of seven LMSCs. Visit the LMSC Info page to learn more about their respective swimming programs.
A detailed description and map (pdf) of each of the USMS Zones and the LMSCs can be found here.
2025 Broadside Harbor Open Water Swims – June 14
Broadside Harbor Open Water 1 and 2 mile Swims
The Snake Rivers Masters invites you to join them in the Broadside Harbor Open Water event which includes both a 1 and 2 swim. The 2 mile swim is part of the 2025 NW Zone OW Championship.
Location: Broadside Harbor Ski Lakes
21600 Look Ln
Caldwell ID 83607
Please park in the dirt lot to the west of the house.
Recent News
Northwest Zone Chatter — June 2024
Northwest Zone Records — As of 05/20/2025
Annual NW Zone Meeting Minutes — September 2022
Prior meeting minutes are also available on the USMS site
Important Links
U.S. Masters Swimming
Alaska LMSC
Inland Northwest LMSC
Montana LMSC
Snake River LMSC
Oregon LMSC
Pacific Northwest LMSC
Utah LMSC
Resources
The following resources are posted here:
Northwest Zone Policies (updated 3/13/2022)
Zone Event Bid Information:
Zone Bid Forms (click to download):