Generally, you need around 1:24,000-scale, 7.5-minute topos.
Week 3 navigation lecture
Print this and bring it to the lecture: Snoqualmie Pass NavLectureMap2023.pdf
Weekend field trips
Mount Si: You must have a paper map. Put it in a plastic bag to protect it from water. Print at least Mt Si CalTopoUSGS.pdf. Optionally, also print Mt Si AllTrails.pdf or Mt Si GaiaGPS.jpg (or something like them) since they have more up-to-date trails.
For other field trips, green trails maps are good or you can print your own from the files captured below or something similar you put together yourself with whatever map tools (caltopo, gaia, etc).