Irrigating College lawn with canvas hose, 1941-07 -- Irrigating peas with aluminum cyphon tubes near Ft. Lupton, 1950-07-07 -- Concrete Parshall flume. Tile stilling wells, undated -- [Weather observation station?], 1962-05 -- Irrigating potatoes near Gilcrest using 1 1/2 in. pipes 28 in. long, 1941-06 -- Irrigating potatoes near Gilcrest using 1 1/2 in. pipes 28 in. long, 1941-06 -- Irrigating potatoes near Gilcrest using 1 1/2 in. pipes 28 in. long, 1941-06 -- First cultivation of beets with 6-row cultivator on White farm east of Pierce, 1945-05-17 -- Beans. Irrigation in alternate rows just completed, undated -- Irrigating new alfalfa and grain in corrugations on side hill near Avondale, 1942-04-03 -- Horse drawn float Prospect, 1942-05-15 -- Irrigating potatoes near Gilcrest using 1 1/2 in. pipes 28 in. long, 1941-06 -- Irrigating sugar beets, undated -- Gladioli grown commercially near Arvada, 1941-09-25 -- Contour ditches for flooding grain on steep slope. On Ault road, 1947-05-13
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