After road grade partly finished. Looking north from San Gabriel Gorge

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  After road grade partly finished. Looking east across lower end of San Gabriel Narrows

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

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  In the Narrows. Looking north up San Gabriel Gorge

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

  photCL 481

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  San Gabriel Gorge. Primitive area and destruction caused by road building

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

  photCL 481

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  End of travel on San Gabriel Canyon road after flood

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

  photCL 481

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  Mount San Antonio from Glendora-San Gabriel Road

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

  photCL 481

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  Little Rock Reservoir, looking north from the road

  Visual Materials

  This collection contains photographs, negatives, and some ephemera chiefly collected by California conservationist and editor William H. Thrall (1873-1963) for use in Trails magazine. Thrall served as managing editor of the publication from 1934 to 1939, which was produced to encourage the use of mountain trails and outdoor recreation in Los Angeles County. The collection includes approximately 1200 prints (Boxes 1-4); 68 glass negatives (Boxes 7-8); approximately 2300 film negatives; 150 slides; and miscellaneous documents and ephemera, and a folding pocket camera. The photographs primarily date from the 1930s, but also include copy prints (and some originals) of late 19th and early 20th photographs. The images depict mountain and forested landscapes and outdoor recreational activities including hiking, skiing, and camping, chiefly in the San Gabriel Mountains and surrounding mountains of Southern California. Many of the photographs include individuals involved in recreational activities as well images of historical mountain pioneers. The photographs chiefly consist of 4.5 x 2.75 inch snapshots and 8 x 10 and 6 x 10 inch prints, by photographers including Dan P. Alexander, Carl H. Bauer, Harlow Dormer, C. C. Vernon, and Thrall. There is also a group of glass plate negatives and film negatives, including a group of unprinted film negatives that appear to be personal photographs with views of nature, groups of people, family scenes, buildings, boating, and trips, in the 1930s-1950s (Box 15). The film negatives have handwritten numbers presumably assigned by Thrall. Many of the prints appear in Trails magazine, which was published quarterly by the Mountain League of Southern California from Winter 1934 to Spring 1939 (Volume 6, No. 1). In Autumn 1941, the Southern California Outdoor Federation began publishing a new edition of Trails Magazine (without Thrall as editor), but only two issues were published (Volume 2, Nos. 1-2).

  photCL 481