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You searched for: Start Over Historic stream surveys Remove constraint Historic stream surveys Subject Crater Lake National Park (Or.) Remove constraint Subject: Crater Lake National Park (Or.)

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  • 1. [Article] Trout studies and a stream survey of Crater Lake National Park, Oregon
    Citation
  • 2. [Image] Surveyor carving landmark on tree in Crater Lake National Park
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    Man carving numbers and letters on blazed tree; canvas water bag at foot of tree
    Citation
  • 3. [Image] Surveyor on summit of Mt. Scott
    233
    Man standing behind tripod and equipment on rock outcropping; man's head in lower right behind rocks
    Citation