The Washington Monument is a singular and iconic structure situated on the National Mall in the heart of the city.
If "Washington Monument West" has become a designated area or feature since then, it's recommended to check the latest maps, official guides, or local sources for the most accurate and current information. The National Mall is a dynamic space that undergoes occasional renovations and enhancements, so there may be developments or additions that occurred after my last update.
For the latest and most precise details regarding any new features or designations related to the Washington Monument or its surroundings, it would be advisable to consult local authorities, the National Park Service, or reliable tourist information sources.