Marks And Jacks Islands State Natural Area Preserve

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Last Updated: December 5, 2025

Marks and Jacks Islands State Natural Area Preserve is a protected area located in the Chesapeake Bay in Maryland.


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Summary

The islands are home to various wildlife, including migratory birds, bald eagles, and ospreys. There are also several species of snakes, turtles, and fish that can be found in the surrounding waters. The islands are a popular spot for boating, fishing, and kayaking.

One of the main points of interest on the islands is the historic lighthouse, which was built in 1858 and is still in operation today. Visitors can take guided tours of the lighthouse and learn about its history and importance to the local community.

Another notable feature of the preserve is the salt marshes that surround the islands, which are home to a variety of plant and animal species. Visitors can take guided walks through the marshes and learn about the unique ecosystem that exists there.

Overall, Marks and Jacks Islands State Natural Area Preserve is a must-visit destination for nature lovers and outdoor enthusiasts. The best time of year to visit is in the spring or fall when the weather is mild and the wildlife is most active. However, visitors should be aware that the islands are only accessible by boat and may be closed during inclement weather.

       

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Park & Land Designation Reference

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing), often around reservoirs, rivers, or scenic landscapes; may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
National Forest
Federally managed lands focused on multiple use—recreation, wildlife habitat, watershed protection, and resource extraction (like timber)—unlike the stricter protections of national parks.
Wilderness
A protected area set aside to conserve specific resources—such as wildlife, habitats, or scientific features—with regulations varying widely depending on the managing agency and purpose.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use—recreation, grazing, mining, conservation—with fewer restrictions than national parks or forests.
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