hawk[< Brit. dial. hawk [haՍk] search out, hunt through < Scand.; cf. Swedish hålka]Placer Mining
v. examine loose rocks and stones of an area in search of gold or other minerals.
1869  (1962)  The rough but honest miner . . . / Seeking for the yellow gold, / Hid amang the clay-- / Howkin' in the mountain side.
1936  Though green at the business of hawking float, he walked over to the tom rocker, a shallow cradle-like contraption with galvanized lining and two handles, and studied it.