tree

--[[
Tree Program
ver 1
by: Raxmo
--]]

turtle.dig() --grab the first block
turtle.forward() --go forward

while turtle.detectUp() do --as long as there is something above me
  turtle.digUp()           --dig what's up there
  turtle.up()              --and go up to continue
end

while turtle.down() do --cleaver little way of returning a turtle back to the ground
end