12/70 - 1/71
Wally Heider Recording Studio - San Francisco , Ca.
PERRO sessions "Planet Earth Rock N Roll Orchestra" , the musicians are Crosby , Garcia ,  Lesh , Hart , Slick , Kantner , Nash , Kaukonen , etc...


Probable trk names for the 16 SHN files 
are:
1. Wooden Ships Jam 
2. Walking In the Mountains  
3. Is it Really Monday 
4. Mountain Song #1
5. Loser #1, #2 
6. Under Anesthesia (false start) - aka You Sit There
7. Under Anesthesia - aka You Sit There
8. Mountain Song #3  
9. Wall Song #1 
10. Over Jordan  - aka Wayfaring Stranger
11. Wild Turkey - aka Leather Winged Bat 
12. Loser #3, #4  
13. Epp Hour  aka Rounds
14. Wall Song #2  
15. Mountain Song #4  
16. Tamalpais High (at about 3) aka Kids and Dogs

More info on the PERRO tapes can be found at:
http://www.math.ufl.edu/~jaz/Trees/PERRO.Corrections
http://crosbynash.com/crosbyNash_site/html/perro/perroCorrect.html#top