As a rule, ancient knappers at the Sugarloaf encampment carefully set up nippled striking platforms for fluting. Often nipples were isolated by removing two, parallel “guide” flakes – a practice that has long been referred to as the “Enterline technique.”
    At Sugarloaf either direct percussion or indirect percussion with a punch was likely employed for fluting from nippled striking platforms. Pressure-flaking need not have been used for removing channel flakes, as preforms of Normanskill chert were thick and strong enough to withstand hard blows.
    This fragment, together with 335 other channel flake fragments, was unearthed during the September, 2013 excavations at the “Ulrich Locus,” Sugarloaf site. It is dated to 12,350 +/- 50 calendar years before present.