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1726 - 1750 of 1812 Items    << < 65 66 67 68 69 70 71 72 73 > >> 
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This negative is of a photograph. Title information from "Canal Lining Manual," by Carl Rohwer, 1946. See Figure 43.
2020-10-28
2017-01-11
2017-01-11
This negative is of two photographs in this collection, 735Aa0203 and 735Aa0204, taken in 1935. Top image appears in "Construction of Irrigation Wells in Colorado," by W. E. Code, 1935. See Figure 1. Bottom image appears in "Putting Down and...

2017-01-11
2017-01-11
Image of Ralph Parshall measuring water in Parshall flume with Soil Conservation Service vehicle in background
2020-10-28
2007-01-02
2007-01-02
Road oil lining in foreground free of weeds, in contrast with bentonite lining behind. For color images from different angles, see "Irrigation methods (sprinkler), 6/19/62" in the Groundwater Data Collection, Water Resources Archive, CSU Archives...

2016-09-20
2016-09-20
Section 4 T8N R68W. Scale 1 in. = 300 ft. Claim made for irrigation. Work commenced 1946, surveyed and filed with Larimer County and State Engineer 1947.
2020-10-28
2007-01-02
2007-01-02
Sections 28, 29, 32 - 34 T11N R71W. Scale 1 in. = 400 ft. Source is North Fork of Cache la Poudre. Shows landowners and locations of two old mines inundated by reservoir. Surveyed and filed with Larimer County and State Engineer 1906. Includes...
2020-10-28
2007-01-02
2007-01-02
This negative is of a photograph. Title information from "Seepage Losses from Irrigation Channels" by Carl Rohwer and Oscar Van Pelt Stout. See Figure 11. The original image was taken in October 1923.

2017-02-03
2017-02-03
Note on envelope reads, "California wells".

2016-08-03
2016-08-03
Various photographers.

2007-01-02
2007-01-02
Note on envelope reads, "Windsor furrow, turnout [illegible]."

2017-02-03
2017-02-03
This negative is of a photograph. Title information from "Seepage Losses from Irrigation Channels" by Carl Rohwer and Oscar Van Pelt Stout. See Figure 12. The original image was taken in October 1923.

2017-02-03
2017-02-03
Treaty between the U. S. and Mexico providing for the use of Rio Grande water
2020-10-28
2007-01-02
2007-01-02
Typed and handwritten bibliographic citations for publications relating to measuring irrigation water gathered by Irrigation Investigations Unit staff members. Articles cited are from Engineering News, various state Agricultural Experiment Station...

2017-04-26
2017-04-26
Book Cliffs run across top third of image. Note on envelope reads, "Grand Junction Indian School Drainage Project, Nov 1916." The Grand Junction Indian School was also known as the Teller Institute.
1916-11-01
2016-12-05
2016-12-05
Notes, possibly by Delph Carpenter, on ditches that divert water from the South Platte River in Nebraska taken from an unpublished report on irrigation in Nebraska by Oscar Van Pelt Stout. Notes are organized by ditch.

2017-07-12
2017-07-12
Documents related to planning and constructing the Civil and Irrigation Engineering Building at Colorado Agricultural College

2007-01-03
2007-01-03
Typescripts, drafts, and correspondence relating to Ralph Parshall's paper, "Irrigation in Colorado," which he intended to present at the American Association for the Advancement of Science, Southwestern Division conference held in Flagstaff,...
2020-10-28
2017-04-26
2017-04-26
Letter from Hatfield Chilson of the Big Thompson Mutual Pipe Line and Irrigation Company to the Consolidated Home Supply Ditch and Reservoir Company (CHS) sending two stock certificates and asking for an estimate of water CHS will want from...
2020-10-28
2015-10-06
2015-10-06
Draft of bill to amend an 1881 act and settle irrigation water priority rights

2007-01-02
2007-01-02
Map of the Colorado River Basin in in Wyoming, Coloraod, New Mexico, Utah, Arizona, Nevada, California, and Mexico.
2020-10-28
2007-01-02
2007-01-02
1726 - 1750 of 1812 Items    << < 65 66 67 68 69 70 71 72 73 > >> 

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