The National Trust for Historic Preservation is now accepting Letters of Intent for the 2023 list of America’s 11 Most Endangered Historic Places.

Deadline for submissions is Friday, November 4, 2022, by 11:59 p.m. Eastern Standard Time. A Letter of Intent (LOI) is similar to a mini application, letting the National Trust know that you would like to nominate your site as one of America’s 11 Most Endangered Historic Places. The National Trust will review all submitted LOIs and will invite select applicants to submit a full nomination in December 2022. The 2023 list of America’s 11 Most Endangered Historic Places will be announced in May.

Since 1988, the National Trust for Historic Preservation has published an annual list of America’s 11 Most Endangered Historic Places to raise awareness about the threats facing some of our nation’s greatest treasures. The list, which has identified more than 300 sites to date, has been so successful in galvanizing preservation efforts that less than five percent of these sites have been lost.

This year, the National Trust for Historic Preservation particularly encourages nominations that illuminate the various ways climate change is affecting historic places of all types. This could include sites facing the impacts of a changing climate such as sea level rise, increased flooding and erosion, wildfires, or severe weather events.

As part of the National Trust’s continued commitment to telling the full American story, we also invite nominations that highlight a unique or overlooked aspect of American history and that expand our understanding of our shared national heritage. To that end, we welcome nominations of historic places important to communities who are historically underrepresented within preservation, including, but not limited to, places associated with women, immigrants, Asian Americans, Black Americans, Latinx Americans, Native Americans, Native Hawaiians, Pacific Islanders, and LGBTQIA communities.