Downloading data from the state is time consuming and I would recommend checking other sources at Bowdoin first because it generally takes less time.
THere are several types of data available from the state of Maine.
These are just a few of the many data sets available for Maine at http://apollo.ogis.state.me.us/catalog/
If you are working with the CBGIS project make sure to check the \GIS files\Data on the CBGIS drive for the data first.