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Cross section plates accompanying geological map of Iowa Hill Mining District : Placer County
- Author / Creator
- Available as
- Physical
Details
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- Creator
- California State Mining Bureau ; by J.B. Hobson, assistant in the field
- Format
- Maps, Atlases
- Language
- English
- Contributors
- Publication
-
- [Sacramento, Calif.] : The Bureau, [1890?]
- S[an] F[rancisco] : Photo-lith. Britton & Rey
- Physical Details
-
- 4 sections on 1 sheet : color ; 15 x 43 cm or smaller, sheet 48 x 45 cm
- OCLC
- ocm26451268
- Cartographic Data
-
Scale [ca. 1:18,000]. Vertical scale [ca. 1:5,250](W 120°50ʹ/N 39°05ʹ).
- Shows geological features, ancient channels, mining claims, etc.
- I. Cross section through Sugar Loaf, Iowa Hill and Roach Hill -- II. Cross section from Refuge Cañon north east through Succor Flat -- III. Cross section from Main Shirt Tail Cañon to North Shirt Tail Cañon showing vigilante and long point channels -- IV. Cross section from north fork of American River through Iowa Hill, Morning Star Tunnel, North Shirt Tail Cañon to Drummond Mine