New Riders of the Purple Sage
John Dawson
- electric guitar (rhythm), vocals
David Nelson
- electric guitar (lead), vocals
David Torbert
- electric bass, vocals
Jerry Garcia
- pedal steel guitar
Spencer Dryden
- drums
As per truckin49 comment at achive.org "It was MC'D by a psychedelic comedian named Uncle Dirty and he was great, It was the NRPS with Garcia on peddle steel, Grateful Dead, Paul Butterfield Blues Band, The Beach Boys, and Mountain closed the show. "
Mountain replaced Bread at the last minute, citing busy making movie soundtrack as per The Duke Chronicle, vol. 66, no. 120 (Tuesday, April 20, 1971) pg 12.
Sources
Weather
High: 71.9 °F
Low: 41.1 °F
Feels Like High: 71.9 °F
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Wind Speed: 21.9 mph
Humidity: 64.8 %
Moonphase: 0.0
Partly cloudy throughout the day.