| http://www.w3.org/ns/prov#value | - In 1865, 277 canals had already been constructed, at a cost, including dams, of $1,766,939, with a total length of 1,043 miles, irrigating 153,949 acres; and there were others in progress at this date, the cost of which was estimated at $877,730. 8 During each succeeding year thousands of acres, before considered worthless, were brought under cultivation, canals being built in all directions, the
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