snort log location

Does anyone know where the log location for snort is located?I would like to write a script that will email the last days logs or the last week.  This way I can run analytics on the data remotely. I checked where snort usually places logs and they are not there.

For bridge mode it is /tmp/snort/alert.fast

Thank you Hans. I found it in same place but different file name in router mode, /tmp/snort/alert.