From Fort Stevens Historical Site & Military Museum parking lot ($5 day use fee), find the Coal Yard. If you’re unfamiliar with the area, visit the museum and pick up a Guide to Historic Military Site.
It’s a nano but looks are deceiving at times.
The log is in the vial. Bring tweezers. BYOP.
Nota Bene: If you are caching in the late spring or early summer, mosquito repellent is highly recommended. They’re wicked this time of the year.
"Ubyl trbpnpur, Ongzna, V gubhtug jr jrer fhccbfrq gb or va gur pbny lneq! Ubj qvq jr trg va guvf gerr?"