Hi History Geek, you’re going to have a great time. Field school is about the most fun you can have while being exhausted, filthy, confused, hungover, sunburned, and did I mention hungover? I’m a professional archaeologist in California and when I take my crew out, I expect each person to have the following:
A trowel - either pointing or margin. It’s kind of a personal preference but make sure it’s a Marshalltown, there is no substitute.
A hat - something with a brim, not a ball cap - you will spend an inordinate amount of time looking down (either the ground or a screen) and the back of your neck and ears will get roasted.
A clipboard.
One sharpie, one mechanical pencil, and one black pen. Sharpies will become scarcer than artifacts a couple of weeks into the job. You can never have enough.
An orange vest - I wear a heavy canvas one like this because I use it all year round and it keeps most of the stuff I constantly use at hand, but you may not want to spend $80 for something you’re only going to use for a bit. They have ones that are much cheaper at pretty much any hardware store.
A poncho or rain slicker - mandatory if you are water screening.
A personal notebook - I like the Rite in the Rain brand but any small, hardback journal type book will do. You’ll want to record each day’s events, impressions, artifacts, etc. I’ve been doing this for years and now have loads of paperwork I have to do everyday, but I still write in my field book at several times over the course of the day.
A protractor and scaled ruler for mapping.
A compass with an adjustable declination.
A good pair of gloves - I see most guys using something like these fingerless ones so that you can pick stuff out of a screen and take notes without taking your gloves off.
Those are the basics. Depending on the site, you may need a hard hat as well.
Sunscreen is not a joke. I have almost 20 years in this field and skin cancer is starting to rear it’s head amongst my contemporaries. You may also want to check on any geographically specific bacteria or viruses you may be exposed to. In parts of CA, we have Valley Fever which can be really devastating.
At some point, someone will tell you that to test if something is bone, put it on your tongue and see if it sticks. Now, this is true - bone will stick to your tongue. However, this is considered bad form if you’re working a site with human remains.
Ask questions, listen more than you speak. Read the dirt, it is telling you the story of how and why the artifacts are where they are.
And finally - always, always, always work from your known into your unknown.