The Department of Natural Resources (DNR), Maryland Park Service is currently accepting applications for Administrative Specialist III positions at Patapsco Valley State Park in Ellicott city, Maryland (Howard County), and Tuckahoe State Park in Queen Anne, Maryland (Queen Anneâs County). Two years of experience using the following office hardware/equipment: printers, scanners, personal computer, external hard drives, copier, I-Pad or similar device, Smart Phone, digital phone system, cash register.