Nearly 15 years ago, Richard Giles and his wife founded Lucky Dog, a 160-acre organic farm on the banks of the Delaware River in New York. Photographer Dana Matthews has spent more than a decade taking pictures of the farm and the families working there.

It has been 400 years since John Rolfe cultivated the first successful tobacco crop in Virginia. As part of his project, photographer Rocco Rorandelli traveled this year to Jamestown, the historic Virginia settlement where Rolfe planted the first crop, and to several tobacco farms in North Carolina.

Aerial photographer Alex MacLean estimates he has spent about 6,000 hours in the sky photographing American farms. His unique perspective depicts the dramatically changing agricultural landscape in the U.S., something he has been drawn to since he started flying nearly 40 years ago.