1936
Explore Dutchess County
place Explore the map on your own or select places of interest from the list on the right.
compare Compare imagery from different time periods using the slider bar.
arrow_drop_down_circle Change imagery using the dropdown menus at the top of the map.
Turf
Unlike vegetation, artificial material such as astroturf absorbs large amounts of infrared light. Slide over the track and watch how the field does not change.
Bannerman Castle
The ruins of Bannerman Castle continue to fall into disrepair. Coupled with a steady rise in sea level, Pollepel Island and the old ruins are rapidly disappearing.
Quarry
The site of Dutchess Quarry & Supply Co. Inc. has expanded steadily over the last century. It now operates as a subsidiary of Peckham Industries, Inc.
DeFlora Brothers Dam
Building of the DeFlora Brothers Dam formed what is now called Apple Lake. Use the slider to show the the area before and after the dam was constructed.
Dutchess County Airport
Since its construction in the 1930s, the Dutchess County Airport has gone through several changes. Most noticeably, the main runway was lengthened to 5,001 (ft) to accommodate larger aircraft.
Kingston-Rhinecliff Bridge
Construction began on the "continuous under-deck truss" style bridge in the mid 1950s, replacing the sporadic and often unreliable ferry service.
Shadows
Shadows are often an unwanted side-affect in aerial photography, primarily because they make land classification more difficult. However, using more advanced photo-interpretation techniques it is possible to calculate time of day and even the height of structures using the size and position of shadows.
Suburban Growth
As veterans returned home from World War II, they settled into suburban areas to start families. During the 1950s, you can see rapid development and expansion of the suburbs and the subsequent beginning of the "baby boom." Use the slider to show the suburban expansion of Hyde Park.
True Color Orthophotography that includes an interchangeable 4th band known as NIR (near infrared).
True Color Orthophotography that includes an interchangeable 4th band known as NIR (near infrared). Captured at a resolution of 6 inches. Image horizontal accuracy is within 3' at the 95% confidence level.
True Color Orthophotography that includes an interchangeable 4th band known as NIR (near infrared). Captured at a resolution of 6 inches for populated places and 12 inches for rural areas.
True Color Orthophotography that includes an interchangeable 4th band known as NIR (near infrared). NIR can be used to create Color Infrared Orthophotography. Captured at a resolution of 6 inches. Image horizontal accuracy is within 3' at the 95% confidence level.
True Color and Color Infrared Orthophotography. Captured at a resolution of 12 inches. Image horizontal accuracy is within 4' at the 95% confidence level.
True Color Orthophotography. Captured at a resolution of 7.5 inches. Image horizontal accuracy is within 3.25' at the 95% confidence level.
Color Infrared Mosaic. The originals are digital MrSid tiles. They were geographically aligned, and mosaiced to produce a single layer.
Black and White Mosaic. The original prints are 9x9 inches. They were scanned, geographically aligned, and mosaiced to produce a single layer.
Black and White Mosaic. The original prints are 9x9 inches. Printed on paper at a scale of 1:12,000. They were scanned, geographically aligned, and mosaiced to produce a single layer.
Black and White Mosaic. The original prints are 9x9 inches. Printed on paper at a scale of 1in = 1000ft. They were scanned, geographically aligned, and mosaiced to produce a single layer
Black and White Mosaic. Printed on paper at a scale of 1in = 1000ft. The original paper photos are roughly 20in x 20in in size. They were scanned, geographically aligned, and mosaiced to produce a single layer.
Black and White Mosaic. The collection is comprised of partial flights from 1941, 1942, 1947, and 1948. A portion of the south-west area of the County does not have aerial photos from the 1940's. The original photos were roughly 9in by 9in on paper stock. They were scanned, geographically aligned, and mosaiced to produce a single layer.
Black and White Mosaic. The original photos are roughly 2 feet by 3 feet in size and bound to a fabric medium. They were printed at a scale of 1 inch = 1000 feet. These fabric mounted aerial photos were digitally scanned, geographically aligned, and then mosaiced together to form one large image.
Mosaics
Orthophotography
Resolution
Black and White (BW)
True Color (TC)
Color Infrared (CIR)
Also known as false color, these were first developed to detect camouflage. They are sensitive to near infrared reflective light (not heat). This results in 'seeing' healthy vegetation as red. Vegetation with very active photosynthesis will appear the brightest red. Color infrared images are superior for mapping the land-water interface as well as for wetlands mapping. It also shows water in light blue/green to dark blue/black hues, depending on the amount of particulates suspended in the water body. Clear, clean water will appear very dark, close to a black tone. As sediment content increases the shades shift to blue color tones. The darkness of the soil tones provides information regarding the moisture content of the soil, darker areas contain more moisture.