If you listen to the whole 34 and 8th album, at the end of so moved on Roberge says that the Black Rock is a place back where the bands from that was there hang out, so its not a metaphor for any for any place or thing its an actual place in there hometown of rockville, maryland, hence the parts " all day long, the black rock, maryland" and "all day long, the blck rock, montgomery county"
If you listen to the whole 34 and 8th album, at the end of so moved on Roberge says that the Black Rock is a place back where the bands from that was there hang out, so its not a metaphor for any for any place or thing its an actual place in there hometown of rockville, maryland, hence the parts " all day long, the black rock, maryland" and "all day long, the blck rock, montgomery county"