Wow, I'm surprised there isn't a single Steilacoom thread yet, it's too bad it's such a nice course, provided you can navigate. I figured, now that Steilacoom is my new home course, I'd try and provide a little info or help to the legions of folks who get lost in its mysteries, so here's a link to two of the many course maps for Steilacoom and a link to a decent aerial layout of the Pro 27 course from dgcoursereivew.com.
You can buy a pack of course maps on some Weekends for a dollar, in the parking lot, there's a few more than whats on here (think 14 maps). If you're going out for the first time I'd advise to hold strictly to trying the NW, SE or Pro 27 courses as the others are more tricky to navigate. The maps are a little hard to read and definitely outdated on the distances, but they give a decent read on where some of the longer walkouts go, it's often easy to just go to the closest hole and end up on a different course.
Link to the NW/SE map.
A note on the SE course, the first hole starts on the left side of the road on the way to the main parking lot, there's some parking on the grass and a small sign. The NW course starts by the main parking lot.
Link to the Pro 27 map.
Course starts in the main Steilacoom parking lot at the end of the course road.
Link to the Pro 27 Aerial
Link to the SE Aerial
Link to the NW Aerial
I'll say in closing that despite its navigational issues, Steilacoom is still a great disc golf facility, a blast to play, and if you learn the layouts you ends up with a lot of variety, in difficulty and style, with long, short, tight and open holes a plenty.