Castle Diamond

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Last Updated: December 5, 2025

Castle Diamond is a historic castle located in the town of Greenville, New York.


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Summary

It was built in 1897 and is considered to be one of the most unique and beautiful structures in the Hudson Valley region.

There are several good reasons to visit Castle Diamond, including its striking architecture and rich history. The castle is a popular destination for weddings and special events, and visitors can take guided tours to learn more about its past.

One of the most interesting points of interest to see at Castle Diamond is the castle's original iron bridge, which spans a nearby creek. There are also several beautiful gardens and scenic views of the surrounding countryside.

One interesting fact about the area is that Castle Diamond was once owned by the famous New York newspaper publisher, William Randolph Hearst. He used the castle as a retreat for his family and friends, and it was also a popular spot for Hollywood actors and actresses during the golden age of cinema.

The best time of year to visit Castle Diamond is during the summer months, when the gardens are in full bloom and the weather is pleasant for outdoor activities. However, the castle is open year-round and there are several events and activities that take place during the fall and winter seasons as well.

       

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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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