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Physical and Environmental Geography Commons™
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Full-Text Articles in Physical and Environmental Geography
Some Interpretations Of A Map On Minnesota Sawmilling, Lyda Belthuis
Some Interpretations Of A Map On Minnesota Sawmilling, Lyda Belthuis
Journal of the Minnesota Academy of Science
Sawmilling in Minnesota started about the time of settlement and, until 1870, mainly consisted of small mills located in the southern half of the state. Mills along the Mississippi River were mainly in urban centers while the remainder were scattered and associated with the clearing of the land and the meeting of the needs of local communities. After 1870, mills become larger. Many were constructed in northern Minnesota. All used forests in the northern port of the state and reduced them so greatly that, by 1920, the mills closed and were replaced by portable sawmills.
Measurement Of Vegetation And Terrain Characteristics On Small Scale Vertical Aerial Photographs, Merle P. Meyer
Measurement Of Vegetation And Terrain Characteristics On Small Scale Vertical Aerial Photographs, Merle P. Meyer
Journal of the Minnesota Academy of Science
Few events in recent years have stirred public imagination and interest to the degree occasioned by the uses made of aerial photographs in the Cuban affair. The average earth scientist, however, was not taken by surprise since the basic methods, materials and principles involved were not new to him. As a matter of fact, since World War II, aerial photography has become an everyday, virtually indispensable tool to most earth feature and natural resource analysts. In order better to understand the application of aerial photographs to such civil pursuits, it would be well at this point to differentiate the two …