11. The Sluice Box , at the junction with the Alfred River, separates the upper and middle section of the Maruia Valley. 12. In the fall, but a short time afler sluicing had begun, floods washed away many dams, ditches, and sluice boxes . 13. The cylinder has many holes in it to allow undersized material ( including gold ) to fall into a sluice box . 14. The Little Sluice, also known as the Sluice Box or simply as " The Box ", is close to Spider Lake. 15. The earth and fine gravel was then flushed through sluice boxes where the heavier gold was extracted from the lighter gravel. 16. During Eli's time at Rock Creek, his son Gaston fell into a miner's sluice box and drowned at two years of age. 17. The dredge spits the dirt, rocks and water across a sluice box , which contains layers of baffles and ridges, fabrics and carpet. 18. At the time of the writer's visit the camp was deserted, although the sluice boxes and canvas hose were still in position. 19. In the late 1860s two and a half tons of gold were produced in a final clean up of the sluice boxes . 20. These operations typically use a land based excavator to feed a gravel screening plant and sluice box floating in a temporary pond.
