The National Park Service, Department of the Interior, and the General Services Administration are offering internships for Summer 2017. The internships are 400 hours total (usually ten weeks at 40 hrs/week) and most are in Washington, D.C., though some may be in other locations. Stipends start at $4800 for shorter positions, though interns are responsible for any travel costs to and lodging at the internship location.
For more information, see http://www.preservenet.cornell.edu/employ/ncpe.php. Direct any questions you may have to firstname.lastname@example.org.