Doc Watson
Telluride Bluegrass Festival
Telluride, Colorado, USA
21 June, 1986

This was on Dime in 2006.

This is the info from the Dime upload in 2006:
KOTO Pre-FM Master Reel > 48k DAT > CDR/SHN
---Mastering/Notes: NashPhil---
Boosted & balanced levels.

And from there:
CD-R > Exact Audio Copy > Wave > Traders Little Helper > Flac

Check the samples in comments.

Doc Watson - Vocals, Guitar, Harmonica
Jack Lawrence - Guitar, Vocals
T. Michael Coleman - Bass, Vocals
(1) Jimmy Fadden - Harmonica
(2) Sam Bush - Fiddle, Mandolin
(3) John McCuen - Banjo
(4) Jim Ibbotson - Hambone 

Setlist:

Disk 1
01 Roll In My Sweet Baby's Arms (1)
02 Make Me A Pallet On Your Floor
03 Milk Cow Blues
04 Instrumental
05 Blue Railroad Train
06 Summertime
07 Nashville Pickin'
08 Trouble In Mind
09 Ten Miles To Deep Gap
10 Old Camp Meeting Time
11 "Tribute To Merle"  (Merle Watson died in October 1985.)
12 Southbound
13 Rock With Doc
14 My Hula Lady Lu
15 Jack's Song 

Disk 2
01 Smoke Smoke Smoke That Cigarette
02 Instrumental (2)
03 Peach Pickin' Time In Georgia (2)
04 Way Downtown (1,2,3)
05 Little Maggie (1,2,3)
06 Down Yonder (1,2,3)
07 Tennessee Stud (1,2,3,4)
08 Mama Don't Allow (1,2,3,4)
09 Lost John (solo)