After PHYS 121
Gateway: PHYS 121
Building the department map…
Department paths
Courses with no prerequisites inside the department that unlock the most downstream work.
Each of these unlocks the largest share of downstream work on this map. Courses from other departments can appear here when they genuinely gate ESS coursework.
Generated from University of Washington’s catalog, prerequisite, and concentration data. Spotted an error? Departments can adjust labels, ordering, and notes without a code change, so contact us.
Intro tiers at the top, advanced work below; arrows point from a prerequisite to the course it unlocks. Courses from other departments appear where they gate ESS work. Click any course to see what it requires and unlocks without leaving this page; hovering lights up its neighbors. The lists on this page carry the same courses in text form.
Showing the 144 ESS and feeder courses that have prerequisite links. 80 more ESS courses have no recorded prerequisites. They are listed under Tracks below, not drawn as loose dots here.
Upper-level clusters, grouped by the gateway that opens them.
Gateway: PHYS 121
Gateway: MATH 125
Gateway: MATH 126
The deepest prerequisite chains in ESS. These are the routes that take the most semesters to climb.
8 courses deep, ending at ESS 475
7 courses deep, ending at ESS 467
7 courses deep, ending at ESS 559
7 courses deep, ending at ESS 564
All ESS courses in the UW catalog
Grade medians are for verified students. Sign in with your school email to see them.
Use your school emailNo section schedule with instructor names for ESS yet.
No clubs or organizations on record under ESS yet.
This shows once five students share their club memberships.
ESS does not run a page here yet. When it does, its events show up here and on the UW campus feed.