GPS coordinates for Geolocation plugin

A student in my digital history class is documenting places that don't have street addresses, but he can secure gps coordinates. All the other students working in the same Omeka application will have street address-based items. Is there any way to use GPS coordinates to place items on the map?

The site is http://njdigitalhistory.org/ but the items have not been posted yet.

Thanks!

I believe you can enter lat/long coordinates as an "address" and the map will pick that location.

At least decimal degrees seem to work: "38.889468, -77.03524"