Relief shown by hachures. Depths shown by contours and soundings. Oriented with north toward the upper left. Includes note. LC copy fold-lined, laminated, halved, and mounted on cloth backing. Available also th More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More
Significance: The Block Island Southeast Lighthouse is significant as a primary aid to the navigation of an otherwise dangerous area, once referred to as the "stumbling block" of the New England coast. It mark More