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Archival descriptionHow To Series : master copy, six sections, How to Take Water Samples (slides 1-14) Water Chemistry Tests Safety and Procedures (slides 16-30), How to do Carbon Dioxide Tests (slides 32-48), How to do Dissolved Oxygen Water Tests (slides 50-78), How to do pH Tests (slides 80-97) and How to do Water Hardness Tests (slides 99-118).
How To Series : master copy, six sections, How to Take Water Samples (slides 1-14) Water Chemistry Tests Safety and Procedures (slides 16-30), How to do Carbon Dioxide Tests (slides 32-48), How to do Dissolved Oxygen Water Tests (slides 50-78), How to do pH Tests (slides 80-97) and How to do Water Hardness Tests (slides 99-118).
How To Measure Stream Flow and How to Use Peterson's Wildflower Guide.
How To Measure Stream Flow and How to Use Peterson's Wildflower Guide.
Hortop's Mill, Everton.
Hortop's Mill, Everton.
Hortop Mill in Everton.
Hortop Mill in Everton.
Horrtop's[sic] Mill.
Horrtop's[sic] Mill.
Honour roll citation recipients.
Honour roll citation recipients.
Historical sites (file 2 of 2).
Historical sites (file 2 of 2).
Historical sites (file 1 of 2).
Historical sites (file 1 of 2).
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Places.
Historical Flood.
Historical Flood.
Historic Watershed Wall Map.
Historic Watershed Wall Map.
Historic Conservation Wall Map.
Historic Conservation Wall Map.
Hiking Trails / [Summit Film Productions for the Grand River Conservation Authority].
Hiking Trails / [Summit Film Productions for the Grand River Conservation Authority].
Heart Lake : winter fun and snow blowing.
Heart Lake : winter fun and snow blowing.
Heart Lake : 94 degrees farenheit.
Heart Lake : 94 degrees farenheit.
Hanlon Creek Conservation Area.
Hanlon Creek Conservation Area.
Halloween & Gorilla.
Halloween & Gorilla.
Gully erosion ; Barleyhead weeds ; Elora Gorge from bridge / Summit Productions [for the Grand River Conservation Authority].
Gully erosion ; Barleyhead weeds ; Elora Gorge from bridge / Summit Productions [for the Grand River Conservation Authority].
Guelph, Woolwich and Conestoga dams / [Summit Film Productions for the Grand River Conservation Authority.]
Guelph, Woolwich and Conestoga dams / [Summit Film Productions for the Grand River Conservation Authority.]
Guelph Statue Unveiling.
Guelph Statue Unveiling.
Guelph Reservoir : construction.
Guelph Reservoir : construction.
Guelph Lake Nature Centre.
Guelph Lake Nature Centre.
Guelph Lake Nature Centre.
Guelph Lake Nature Centre.
Guelph Lake Nature Centre.
Guelph Lake Nature Centre.
Guelph Lake Nature Center.
Guelph Lake Nature Center.
Guelph Lake Interpretive Centre.
Guelph Lake Interpretive Centre.
Guelph Lake Interpretive .
Guelph Lake Interpretive .
Guelph Lake Conservation Area Field .
Guelph Lake Conservation Area Field .
Guelph Lake Concert Site.
Guelph Lake Concert Site.
Guelph Lake .
Guelph Lake .
Guelph Lake.
Guelph Lake.
Guelph Lake.
Guelph Lake.
Guelph dam site : topographical map and articles.
Guelph dam site : topographical map and articles.
Guelph Dam micro-hydro opening and open house, June 16, 1982 : working file.
Guelph Dam micro-hydro opening and open house, June 16, 1982 : working file.
Guelph Dam Micro Hydro Demonstration Project, May 3, 1982 and April 1983, [Chargeur No. 2], even numbers.
Guelph Dam Micro Hydro Demonstration Project, May 3, 1982 and April 1983, [Chargeur No. 2], even numbers.
Guelph Dam Micro Hydro Demonstration Project, May 1982, [Chargeur No. 2].
Guelph Dam Micro Hydro Demonstration Project, May 1982, [Chargeur No. 2].
Guelph Dam construction / [Summit Film Productions for the Grand River Conservation Authority].
Guelph Dam construction / [Summit Film Productions for the Grand River Conservation Authority].
Guelph Dam and Reservoir (file 2 of 2).
Guelph Dam and Reservoir (file 2 of 2).
Guelph Dam and Reservoir (file 1 of 2).
Guelph Dam and Reservoir (file 1 of 2).
Guelph Dam : opening day, sweeps at Luther / Adolfis Ridzins.
Guelph Dam : opening day, sweeps at Luther / Adolfis Ridzins.
Guelph Dam : micro hydro opening ceremony, 1982 : print #1 / Maclean Hunter Cable TV, Channel 8 cablecast, Guelph.
Guelph Dam : micro hydro opening ceremony, 1982 : print #1 / Maclean Hunter Cable TV, Channel 8 cablecast, Guelph.
Guelph Dam : Conservation Report and Miscellaneous Scenery.
Guelph Dam : Conservation Report and Miscellaneous Scenery.
Guelph Conservation Authority.
Guelph Conservation Authority.
Guelph Conservation Area.
Guelph Conservation Area.
Guelph Conservation Area.
Guelph Conservation Area.
Guelph Conservation Area.
Guelph Conservation Area.
GRCA videocassettes transferred to DVDs.
GRCA videocassettes transferred to DVDs.
GRCA slide show #2 audio.
GRCA slide show #2 audio.
GRCA Prologue, 1976; Galt Flood, April 6, 1929.
GRCA Prologue, 1976; Galt Flood, April 6, 1929.
GRCA prologue / Summit Film Productions Limited [for the Grand River Conservation Authority.]
GRCA prologue / Summit Film Productions Limited [for the Grand River Conservation Authority.]
GRCA membership and staff photos : Woolwich Dam sod turning (file 9 of 16).
GRCA membership and staff photos : Woolwich Dam sod turning (file 9 of 16).
GRCA membership and staff photos : unidentified portrait (file 16 of 16).
GRCA membership and staff photos : unidentified portrait (file 16 of 16).
GRCA membership and staff photos : staff portraits (file 10 of 16).
GRCA membership and staff photos : staff portraits (file 10 of 16).
GRCA membership and staff photos : staff meeting at Shand dam, March 29, 1967 (file 5 of 16).
GRCA membership and staff photos : staff meeting at Shand dam, March 29, 1967 (file 5 of 16).
GRCA membership and staff photos : Joe Connell : portrait (file 12 of 16).
GRCA membership and staff photos : Joe Connell : portrait (file 12 of 16).
GRCA membership and staff photos : Hugh Cameron, Supervisor of Dams (file 8 of 16).
GRCA membership and staff photos : Hugh Cameron, Supervisor of Dams (file 8 of 16).
GRCA membership and staff photos : Haworth (file 11 of 16).
GRCA membership and staff photos : Haworth (file 11 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors (file 4 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors (file 4 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors (file 1 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors (file 1 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors and Grand Valley Conservation Commission meeting, 1965 (file 2 of 16).
GRCA membership and staff photos : Grand Valley Conservation Authority Board of Directors and Grand Valley Conservation Commission meeting, 1965 (file 2 of 16).
GRCA membership and staff photos : Gordon Chaplin : portrait (file 13 of 16).
GRCA membership and staff photos : Gordon Chaplin : portrait (file 13 of 16).
GRCA membership and staff photos : Garfield Disher at Byng Island (file 7 of 16).
GRCA membership and staff photos : Garfield Disher at Byng Island (file 7 of 16).
GRCA membership and staff photos : Clarence Sutor, first Pinehurst Lake Superintendent (file 14 of 16).
GRCA membership and staff photos : Clarence Sutor, first Pinehurst Lake Superintendent (file 14 of 16).
GRCA membership and staff photos : board tours and meetings (file 15 of 16).
GRCA membership and staff photos : board tours and meetings (file 15 of 16).
GRCA membership and staff photos : Board of Directors, Lake Belwood, June 21, 1967 (file 6 of 16).
GRCA membership and staff photos : Board of Directors, Lake Belwood, June 21, 1967 (file 6 of 16).
GRCA membership and staff photos : board and staff (file 3 of 16).
GRCA membership and staff photos : board and staff (file 3 of 16).
GRCA information night, Paris, June 5, 1981 / recorded by Jarmain Cable TV, Brantford, print #1.
GRCA information night, Paris, June 5, 1981 / recorded by Jarmain Cable TV, Brantford, print #1.
GRCA conservation areas : Winter footage, Jan 21, 1985 : print #1.
GRCA conservation areas : Winter footage, Jan 21, 1985 : print #1.
GRCA Conservation Area brochures.
GRCA Conservation Area brochures.
GRCA audio #4 : low flow, Nov. 1978.
GRCA audio #4 : low flow, Nov. 1978.
GRCA audio #3 : geography of basin, Nov. 1978.
GRCA audio #3 : geography of basin, Nov. 1978.
G.R.C. Commisssion : history, tree planting at Conestogo / Adolfis Ridzins.
G.R.C. Commisssion : history, tree planting at Conestogo / Adolfis Ridzins.
Gravel pits, dumps / [Summit Film Productions for the Grand River Conservation Authority].
Gravel pits, dumps / [Summit Film Productions for the Grand River Conservation Authority].
Gravel pits.
Gravel pits.
Graphics.
Graphics.
Graphics.
Graphics.
Graphics.
Graphics.
Graphics.
Graphics.
Grand Van and Mobile Visitor Centre.
Grand Van and Mobile Visitor Centre.
Grand Valley village : dam repair.
Grand Valley village : dam repair.
Grand Valley Trails : workprint ; Resources Management Camp ; 1948 Flood : colour footage.
Grand Valley Trails : workprint ; Resources Management Camp ; 1948 Flood : colour footage.
Grand Valley trails : rough cut workprint / Summit Film Productions, October 26, 1976.
Grand Valley trails : rough cut workprint / Summit Film Productions, October 26, 1976.
Grand Valley Trail : hiking day near Pinehurst Conservation Area, and Grand at Doon .
Grand Valley Trail : hiking day near Pinehurst Conservation Area, and Grand at Doon .
Grand Valley tornado, June, 1985.
Grand Valley tornado, June, 1985.
Grand Valley tornado damage : ground footage, June 4, 1985; Grand Valley Tree Replacement, May 1986 : print #1.
Grand Valley tornado damage : ground footage, June 4, 1985; Grand Valley Tree Replacement, May 1986 : print #1.
Grand Valley ice jam flooding , Apr. 16, 1972.
Grand Valley ice jam flooding , Apr. 16, 1972.
Grand Valley Ice Jam and Flood / [Summit Film Productions for the Grand River Conservation Authority].
Grand Valley Ice Jam and Flood / [Summit Film Productions for the Grand River Conservation Authority].
Grand Valley Dam.
Grand Valley Dam.
Grand Valley Conservation Foundation : financial statements, December 31, 1974.
Grand Valley Conservation Foundation : financial statements, December 31, 1974.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Foundation.
Grand Valley Conservation Authority members.
Grand Valley Conservation Authority members.
Grand Valley Conservation Authority executive members.
Grand Valley Conservation Authority executive members.
Results 701 to 800 of 2087