"Eagle I" Helicopter in Mather Gorge
for the US Park Police
Examining a Young Green Snake at BioBlitz
for The Nature Conservancy
Attaching the Second Deck of the "Charles F. Mercer"
for the Friends of Historic Great Falls Tavern
Lock 19, C&O Canal
for the C&O Canal Trust
Crossing the Rapids Below Great Falls
for Cabin John Fire and Rescue, Montgomery County, Maryland
"Charles F. Mercer" Canal Boat Above Lock 20
for the C&O Canal National Historical Park
Snail Tracks in the Sediment of a Maple Leaf Under Water
for the Potomac Conservancy