Photograph of National Watershed Congress. A singing group entertains the National Watershed Congress, 1966, at Oklahoma City, OK. TRC-99-12.

Photograph of Gordon K. Zimmerman, right, introduces Mr. Mrs. Marvin C. Emerson at a banquet meeting of the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-5.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Registrants at the Congress with Oklahoma Governor Henry Bellmon second from right. TRC-100-12.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Wayne Liles, farm Editor, KWTV (Channel 9), Oklahoma City, left, and Oklahoma City, left, and Oklahoma Senator, Fred Harris. TRC-100-1.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Left: Oklahoma's Governor Henry Bellmon and Marvin G. Emerson, Director, Oklahoma State Soil Conservation Board before the Board's watershed display. TRC-100-9.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Left: Oklahoma's Governor Henry Bellmon and Marvin G. Emerson, Director, Oklahoma State Soil Conservation Board before the Board's watershed display. TRC-100-8.

Photograph of Leo P. Harvey, Pleasant Grove, Utah, receives the National Watershed of the Year plaque for American Fork-Dry Creek Waershed. James B. Craig, of the American Forestry Association, Washington DC, makes the presentation. National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-7.

Photograph of Leon J. Sisk, Field Secretary, Georgia Soil and Water Conservation Committee, speaks at the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-6.

Photograph of James B. Craig, American Forestry Association, Washington DC (left) presents Watershed Man of the Year plaque to Elmer L. Smith, Catepillar Tractor Company, Peoria, Illinois. National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-16.

Photograph of Henry P. Caufiled Jr., Executive Director, federal Water Resources Council, Washington DC, speaks to the National Watershed Congress, 1966, Oklahoma City. TRC 99-2.

Photograph of the Watershed Congress, 1966, Oklahoma City, OK. Registrants at Congress with Oklahoma Governor, Henry Bellmon, at right. TRC-100-11.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Dave Stewart of the National Association of Conservation Districts (NACD) at the registration desk. TRC-100-3.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Russell Pierson, Farm Editor, WKY-TV [then channel 4] and radio, Oklahoma City, left, and Senator Fred Harris of Oklahoma. TRC-100-2.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Registrants at the Congress with Oklahoma Governor Henry Bellmon at right. TRC-100-10.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Duncan's watershed display. TRC-100-7.

Photograph of Watershed Congress, 1966, Oklahoma City, OK. Hollir R. Williams, Soil Conservation Service (SCS) Deputy Administrator for Watersheds, addresses banquet meeting of the National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-1.

Photograph of Gordon Zimmerman, Executive Secretary, NACD, Washington, presides at the meeting of National Watershed Congress, 1966, Oklahoma City, OK. TRC-99-4.

Photograph of an UNIDENTIIFED man inspecting a bloated patch of heavily grazed Fescue and Ladino Clover. The back of the photograph proclaims, "Heavy grazing onf [sic] Fescue and Ladino clover. Some bloat is lkiely [sic] from a lush clover pasture. SCS technicians recommend proper fertilization for plant needs as aid."

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. View facing north-north central portion of planting area (Field no. 2). Cover crop plantings made and to be planted are to determine whether cover can be grown for eventual parennial vegetation plantings. Field borders are prairie hay mulched (3 tons per acre) and anchored with tandem discs. The tallest vegetation row is rye planted on 09-29-1966 and fertilized with 400 pounds per acre of 10-20-10 fertilizer. It was top dressed on 03-26-1967 with 50 pounds of nitrogen per acre. Summer cover crops are to be planted in the north portion of this filed. OK-2768-7.

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. View facing east along south portion of planting area (Field no. 4). This cheat grass (Bromus spp [= species pluralis]) was planted and fertilized in four rows in late September 1966. OK-2767-6.

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. Filed 6 of field trial on slimes pond. This field consists of unmulched woody species of plantings. Note the seeding growth at this date. Trees received no fertilizer. OK-2768-14.

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. Grass seedlings were mulched with prairie hay that was hand spread following planting at the rate of 3 tons per acre and anchored with a tandem disc from March 15 - 17, 1967. This shows an adequate mulch cover, but demonstrates by the amount of loose hay on the surface that the tandem disc did not properly anchor this mulch. OK-2767-4.

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. View facing east showing the southeast section of area. In the foreground are rows of sod-planted grasses. From right to left are rows of switchgrass, broomsedge, bluestem, American beachgrass and then one row divided among three grasses--blowout grass, plumegrass and giant reed. In the background are tree plantings (Field no. 6) unmulched with a mulch border next to snow fences. OK-2768-16.

Photograph of the area around the Eagle-Pichers Mine, Picher, Oklahoma. Slimes Pond Evaluation of plantings in Commerce, Oklahoma. Field # 6 of a field trial on Slimes Pond. This field is an unmulched woody species of plantings. Note the seedling growth at this date. The trees received no fertilizer. OK-2768-14.