This is a small magnetic container -- room for log only, though it's bigger than a micro. Special thanks to NoVA-GRT for providing us with the gear!
It's a great location to get to on foot or on your bike via the Four Mile Run trail. If you're driving, park on Commonwealth just past Cora Kelley School, or in the parking circle at the end of Edison Street.
The area can be muggle-heavy at times, so use discretion. It will be hard to be inconspicuous -- unless you're tall. Then it's easy.