Delta College Maps will help you navigate to all Delta locations. The college's wayfinding system is dedicated to helping the first-time visitor navigate from the outside to the inside. The main campus building is a big circle with "A" beginning at the library and continuing through "P" Wing. The upper level is the 200 series, the main level is the 100 series, and the lower level is 001-099. The lower level along the college gardens is called the East and West Courtyard levels. Lower level rooms are identified as N012 or F003 rather than N12 or F3 to reflect the room sign.