There are literally thousands of places she could have been dumped, that are all within a half hour of her apartment. Many people would be surprised exactly how rural it can get in that area.
There are areas up around Penn National and I-81 that have houses accessible by four wheel drive vehicle only. There are also state parks and state gamelands that are just as remote, and see even less traffic. There is Swatara State Park, which also has adjoining state gamelands, that I-81 runs through.
Schuylkill County is legendary as far as strip mines, Conrad Weiser State Forest, state gamelands, and other large remote areas.
Reaching I-81 from Palmyra, is quick and easy, especially in early morning hours, when there is little traffic.
There are many, many horse farms in those areas as well, and after the economic crises from 2008-2010, many of those farms sat empty for years. Many were for sale for years, or in foreclosure without being actively shown, as there was just no market for them.
With some geographic knowledge of the area, combined with some knowledge of what farms were empty, and a couple of hours worth of time, the biggest concern is getting Kortne out of Palmyra undetected.