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Filter: Subject of Environmental protection
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| Date: | |
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| Description: | Six-man crew at Camp Mercer looking for ribes (gooseberries), a stage essential for the transmission of blister rust to white pines, working in a marsh are... |
| Date: | 05 12 1948 |
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| Description: | Elevated view of members of the audience attending a meeting sponsored by the newly incorporated Southern Wisconsin Anti-Pollution Federation. The meeting ... |
| Date: | 1966 |
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| Description: | Gaylord Nelson participates in a canoe trip down the Namekagon River in an effort to protect the river under the National Wild and Scenic Rivers Act. |
| Date: | 05 1999 |
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| Description: | 77 volunteers pick up trash and debris in the Rock River. Chuck Trauba and the crew covered the river from Theresa Marsh to the Theresa Disposal plant. 50 ... |
| Date: | 10 1978 |
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| Description: | Two men are standing on the rocky shoreline of the Sheboygan River. One man is holding a shovel in his right hand and a glass jar in his left hand. The oth... |
| Date: | 10 1978 |
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| Description: | Two men are kneeling on the ground. One man is holding a shovel while the other man is scooping dirt from the shovel into a glass jar. They are measuring P... |
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