Скачать или смотреть The Colorado Farmer Who Defeated Drought With Stone Trenches (1874)

In 1874, during a devastating Great Plains drought, a Scottish immigrant farmer in southern Colorado built buried stone-lined trenches that her neighbors and trained European engineers dismissed as useless drainage.
While surrounding farms relied on surface canals and shallow wells — and later lost their crops — her fields remained green.
This documentary explores how her subsurface stone channels redirected spring runoff beneath the soil, using gravity, capillary action, and thermal buffering to retain moisture long after rainfall stopped. Through measured crop yields, cost records, and eyewitness accounts, the story reveals how her method outperformed conventional irrigation, spread to neighboring farms, and influenced early dryland farming practices.
It is a historical case study in overlooked engineering, sustainable irrigation, and how practical knowledge — often dismissed — can prevail under real-world conditions.