By Lotte Govaerts
This image-heavy blog post is all about tools! Today we want to tell you not about tools found in archaeological contexts but rather about the tools archaeologists use to excavate sites. Well, about a few of those tools, anyway.
A few years ago, I tweeted a series of photos for a “31 Days of Archaeology” Twitter event, in which participants posted archaeology-themed photos in response to a series of prompts.[1] One of the prompts was “Tools of the Trade”. On that day, I posted a photo of the contents of my tool bag. My Twitter followers later expressed some interest in seeing that tweet turned into a blog post, so I have now expanded that tweet into this post. Come join my exploration of the objects in the first photo! As it may be difficult to see all the tools in that photo, I’m including some closeups below. As always, you can click each image to see a larger version.
Before I get started, I should clarify that the contents of my tool bag are optimized for field work on the east coast of the United States. Archaeologists who do fieldwork in places with different soils and different climate conditions may have a completely different set of tools! In addition, the tools pictured here are hand tools that fit in my bag. We typically use larger tools as well. You will see some of those other tools in the photos below, though I will not discuss them in detail.
I should also add that I have not done regular fieldwork since I came to the Rogers Archaeology Lab; I only occasionally volunteer on other people’s projects now. Therefore, many of the photos in this post are more than a few years old, even if I talk about the work in the present tense.
Trowels
Pictured here are my trowels. While not all archaeological work involves digging, digging is still a central activity in this profession, and these trowels are my main digging tools, alongside shovels. Archaeological excavations involve various conditions and situations. Some situations require the use of shovels or even big earth-moving equipment to dig. In other situations, when more precision is required, small hand tools are better suited to the job.
The three trowels in the photo all started out the same size – a bit larger than the largest of the three– but they have gotten smaller over time due to sharpening. They have been sharpened many times! Why do we need sharp trowels? The sharp edge not only makes digging easier, but it also makes the soil easier to read. When you scrape a soil surface with a sharp edge, the different soil colors and textures become much easier to see. If you continue to work on that surface, walk on it, or brush dirt over it, the soil gets all smudged and these features become invisible. That’s why we clean our working surfaces with trowels every time we take photos and start investigating something new on that surface.
Measuring tools
Archaeological fieldwork requires a lot of measuring. That’s why my tool bag contains several tape measures and other measuring instruments. Because archaeological excavation is destructive by its very nature, it is very important that we carefully document everything we do and find as we excavate. We use these tools to establish grids for digging and to note the coordinates of in-situ finds. We also carefully map each level.
Spoons
The spoons pictured in the top photo are also used for digging. When we dig features with rounded edges, the rounded shapes of different-sized spoons come in handy. It’s impossible to dig out these shapes with the straight edges of trowels!
Root clippers
I refer to these tools as “root clippers” even though they’re clearly… gardening shears. In archaeology, we use them to cut roots, though. We try not to bother the trees too much, but there’s typically a larger version on site too, as well as a saw or two, to cut larger roots we encounter in our excavation squares.
Brushes
These paint brushes are used to brush loose dirt off certain surfaces. Brushing dirt off a soil surface is usually pointless, because (depending on the soil) doing so will smear the surface, but brushes come in very handy when cleaning up rocks and other hard surfaces.
I don’t use toothbrushes a lot in the field, although I use them regularly when processing freshly excavated artifacts in the lab. I keep one in my tool bag for those occasions when I want to scrub some dirt off the broken edge of a sherd to see the temper, for example.
Gloves
You’ll note that I have a lot of gloves in my bag. That’s because I use them a lot and because archaeological fieldwork is very hard on them; activities like screening (pushing dirt through a metal screen) cause holes, especially in the fingers. Screening without gloves can be dangerous, as for example chipped stone tools that are hundreds or thousands of years old are still sharp and it’s easy to cut yourself as you’re pushing the soil through the screen. There could also be glass or metal fragments in the soil. Some of the pictured gloves are for warmth rather than for protection. I wear those underneath the sturdier work gloves when it is very cold out.
Flagging tape
I can’t remember now why a piece of flagging tape with the word “unfinished” on it was in my bag, but we use pieces of brightly colored flagging tape like that (the roll that piece came from was not in my bag; I typically keep it in my backpack so it stays clean) to mark locations out in the woods (we remove it when we’re done!) or to label bags of soil and other items. We also use similarly bright pin flags to mark grid coordinates, the location of test pits, or surface finds.
Screwdrivers
As you can see, my tool bag contains two screwdrivers. I don’t typically need two screwdrivers at the same time, but it’s good to have backups! I occasionally need a screwdriver to fix a screen or other piece of equipment but that is not an everyday kind of thing when I am doing fieldwork.
Pointy wooden sticks
The small wooden tools seen in the first photo (mostly in the top left) are used for excavating delicate objects, like pieces of burned wood, or for getting the dirt from between rocks or other tight spaces.
Pens and pencils
I keep a few pens and pencils in my tool bag; I have more in my backpack where they stay clean longer. We use thin sharpies to write on bag tags and thick sharpies to write on flagging tape, pin flags, and sometimes artifact bags. We use pens and pencils to take notes and fill out forms. When we excavate test units, we fill out a unit level form for each level; in it, we note details such as soil color and texture and describe the types of artifacts we encountered during excavation.
Line level
The line level (next to the pens and pencils in the bottom left of the top photo) is mostly used for mapping profiles (the exposed wall of a test unit or a feature). It provides a straight, level reference to measure everything in the profile against, as seen in the photo I posted above to illustrate folding rulers in use, which I will reproduce here for your convenience.
String
The white string (center left in the first photo) is mainly used for marking grids/excavation units as well as for drawing profiles. I keep it in a plastic bag so that it doesn’t turn brown from being in contact with the dirty tools in my tool bag. White, or a bright color like the pink in the previous photo, is easier to distinguish from the soil in photos. You can see the string around many of the excavation units in the photos above and below.
Files
Files are used for sharpening trowels and shovels. This needs to be done fairly regularly as the edges become dull relatively quickly. Sharp edges make digging much easier!
Bag tags
The bag tags seen in the center right of the top photo are paper cards used for labeling all artifacts. I keep a few of them in my tool bag, but most of them are kept in a cleaner place. Once the required details have been filled out, these tags are placed inside a small plastic bag that goes inside a larger artifact bag; the smaller bag keeps them from getting wet or dirty through contact with artifacts that come straight out of the soil. Each artifact bag gets a tag with information about the location where the artifacts were found (i.e., grid coordinates, level) along with the date, the name of the project and/or the site number (sometimes we collect artifacts outside of sites or on sites that do not yet have a number, so it is important to record the project name as well), and some other details.
Other tools
As you can clearly see in the photos above, we use many other tools in the field. Shovels, screens, measuring tape and shears too big to fit in a tool bag, buckets and dust pans (for collecting the soil excavated by trowel and depositing it into a screen) We also sometimes use heavy digging equipment, homemade equipment like water screening constructions and flotation tanks, and both small and larger electronics. These tools are either too big, too delicate, or too clean to be in a tool bag and are therefore not discussed here.
I hope you enjoyed this stroll through the contents of my tool bag, through some of the sites where I worked in the past, and through some of the more scenic places in western North Carolina, my main work area before I joined the Rogers Archaeology Lab and moved my research interests to the Great Plains. Stay tuned for updates on more recent research that will be posted here soon.
[1] The prompts were written by Kim Biddulph, who has since left Twitter and deleted the original post; therefore, that post is not linked here.