The cache is not hidden at the posted coordinates.

I have become a fan of satellite radio.  Because my high school and college years were in the 70s, the radio channel that only plays music from that decade has become my favorite.  The more I have listened to it, the more I have noticed interesting things about the songs and artists of that great era of music.

To determine the coordinates of this cache, you will need to solve the following puzzle.

N 33 _ _ . _ _ _
W 085 _ _ . _ _ _

5-29-71
2-8-75
8-7-76
1-15-77
11-4-72

8-26-78
2-1-75
11-17-79
3-30-74
12-28-74