The Thames Valley Trail stretches for 110 km from its southern terminus on Southdel Drive at the Elgin Trail north terminus, to its northern terminus in St. Marys at the Avon Trail west terminus. This series of caches follows the off-road trail portions of the Thames Valley Trail (TVT) and are named for various fictional characters of the Star Trek universe.
Chief Miles O'Brien was the Transporter Chief on the Starship Enterprise, and was later transferred to Deep Space Nine.
The cache is a micro on a tree.