Acting
John Gill (born 16 Feb 1937) is an American mathematician who has achieved recognition for his rock-climbing. He is widely considered to be the father of American bouldering.
Friction Addiction
2003
Blocheads
2016
Rocky Mountain Highball
2010
John Gill Across Time
2012
High And Mighty
2015
The Silent Climber
1976
Brave New Wild
2014
The Best of Horsetooth Reservoir Bouldering
2000
Bachar: Man, Myth, Legend
2005
Disciples of Gill
2009
On the Rocks
1985
Upward Bound
1987