Park had eagles at the sixth and 13th holes -- both par 5s -- in conditions that allowed for the players to attack the pin. There were a total of 10 eagles on the day.
Park is at 18-under 198 with one round to play. That's two strokes better than Suzann Pettersen, who twice had three-birdie runs, for a 6-under 66 and 54-hole total of 200.
Defending champion and world No. 1 Yani Tseng, who also eagled 13, had a bogey-free 66 and is third at 14-under. Catriona Matthew, whose round included an eagle at No. 6, is in fourth at 12-under after a third-round 68. Cristie Kerr used an eagle at 13 for a 5-under on the day and is fifth, eight strokes behind Park.
Park opened her Saturday round with a birdie but chipped in for eagle at 6. She suffered her lone bogey on the day at the seventh hole but answered with a birdie at No. 8.
Park had a birdie at No. 10 before the eagle at 13 while birdies at 16 and 18 left her lead at two strokes.
Ohio bar shooting arrested, charged with murder
Attkisson leaves CBS News, reportedly over network's 'liberal bias'