File:American forestry (1910-1923) (18145846661).jpg

Title: American forestry
Identifier: americanforestry2111915amer (find matches)
Year: 1910-1923 (1910s)
Authors: American Forestry Association
Subjects: Forests and forestry
Publisher: Washington, D. C. : American Forestry Association
Contributing Library: The LuEsther T Mertz Library, the New York Botanical Garden
Digitizing Sponsor: The LuEsther T Mertz Library, the New York Botanical Garden

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54 AMERICAN FORESTRY times. The base camp was established only 2 miles from the rim of the crater and from this camp, at an elevation of over 8,000 feet many excellent pictures were possible. Many erup- tions were witnessed in all their grandeur and the rumb- lings and tremors of the earth often made one wish he were elsewhere. The ascents of the peak made by the writer in the lat- ter part of August and the beginning of September were made for securing triangula- tion points for a general map of the region. Plane table work at the brink of an ex- plosive volcano is not the pleasantest job imaginable, hence such visits were usually made as brief as possible and not any oftener than was ab- solutely necessary. These as- cents showed that the crater had increased considerably in size since June. The crater was at the beginning of Sep- tember about 800 feet long and 350 feet wide and the country for at least a mile around was covered by a thick blanket of light volcanic ash. Practically all the snow that was left on the mountain was covered by this ash and the water it soaked up from the snow made it look black. Hence Mt.Lassen this summer not only acted like a volcano but decidedly took on the ghastly appearance of one. The Forest Fire Lookout Sta- tion was at that time still standing but the roof and sides had ntmierous large and small holes in them. One noticed, while walking over the rocks and volcanic ash on top, numerous large depressions in the ash and rock where large boulders had fallen. These holes occurred as much as a mile from the crater and they serve as evidences of the severity of the explosions. Up to the present time there has been no destruction of life of any form. No timber or other natural resource has been destroyed as far as the writer knows. The heavy clouds of ash laden steam that are thrown out of the crater
Text Appearing After Image:
Photo by R. H. Boerker. Third Stage of the Eruption. thick black ash laden steams cover the entire mountain, sometimes this is carried for fifteen or twenty miles. the entire top of the mountain is covered with this fine vol- canic ash to a depth of eight or ten feet. at the time of an eruption are often carried by the wind for many miles. The most violent of these eruptions have sent these clouds with the help of the wind for 20 miles or more. The height to which these great colimms of vapor are thrown has been quite ac- curately determined by Forest Ranger

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