[Men working on tugboat.]

[Men working on tugboat.]

[Men on dock with tugboat.]

[Men on tugboat.]

[Man on tugboat.]

[Tugboat near dock.]

[Tugboat.]

[Tugboats with ship.]

[Docked tugboats.]

[Tugboat at dock.]

[Close-up view of Moran tugboat funnel.]

[Tugboat next to ship.]

[Moran tugboat with ship.]

[Alice M. Moran tugboat.]

[Detail of docked tugboat.]

[Olsen Towing Line tugboat.]

[Peter Moran tugboat.]

[Lee-Simmons tugboat.]

[Overhead view of tugboat's deck.]

[Man securing rope around snubbing post on Alice M. Moran tugboat.]