Part 3: James M. Vianna, PLS...Part 3: James M. Vianna, PLS Boundary Maps “The Mapping of New York...
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Contact: [email protected] 1 Part 3: James M. Vianna, PLS NYSAPLS 59 th Annual Conference Albany N.Y. January 18, 2018 James M. Vianna, PLS, James M. Vianna, PLS 170 Lohnes Road Stillwater, N.Y. 12170 (518)-587-3381 [email protected] 1. GEODETIC TRIANGLES 2. STATIONS 3. SIGNALS & TOWERS 4. INSTRUMENTS 5. BASELINES 6. BOUNDARY LINES Page 65 For his initial work in 1872 Colvin was given an “appropriation” of $1,000
Transcript of Part 3: James M. Vianna, PLS...Part 3: James M. Vianna, PLS Boundary Maps “The Mapping of New York...
Contact: [email protected] 1
Part 3: James M. Vianna, PLS
NYSAPLS59th Annual ConferenceAlbany N.Y.January 18, 2018
James M. Vianna, PLS,
James M. Vianna, PLS170 Lohnes RoadStillwater, N.Y. 12170(518)[email protected]
1. GEODETIC TRIANGLES2. STATIONS3. SIGNALS & TOWERS4. INSTRUMENTS5. BASELINES6. BOUNDARY LINES
Page 65
For his initial work in
1872 Colvinwas given an
“appropriation” of $1,000
Contact: [email protected] 2
Part 3: James M. Vianna, PLS
USCS North base
Initial triangle and first new mountain top
occupation
Initial Triangles
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Part 3: James M. Vianna, PLS
Stations (preliminary sketches)
Station details
Bolt 17 -- Mt. SkylightColvin “old style”
(Type One)
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Colvin “new style” (Type Two)Bolt 55 - Vanderwalker Mtn. and later USC&GS marker
“Type Three”
“Type Four”
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The “Steel Wedge”
“Foot Holes”
Signals & Towers
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Signals & Towers
Isle La Motte, Vermont& Cumberland Revolving signal
Signals & Towers “Parallel Movement Heliotrope”
Signals & Towers
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Part 3: James M. Vianna, PLS
Signals & Towers
Signals & Towers
1897 Report
Signals & Towers
Orson P. Morse 1890’s Polaris Mtn.
Orson P. Morse 2009 at Durants great camp Pine Knot on Raquette Lake
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Signals & Towers (Gore Mtn.)
Signals & Towers
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Instruments
The 9” double vernier KernSuisse Aarau ?
The original ? “Grand Theodolite” as
manufactured by Oerthling of Berlin, outfitted with signaling heliotrope
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Typical Gurley instrument used on boundary line retracement by
the NYS Survey
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Baselines
(4,983.150’)4,983.250’ ±5mm + 5ppm
1 part in 50,000±
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Lake Placid
Boundary lines
Boundary lines “Dutton Mtn.”
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Boundary Maps
“The Mapping of New York State: A Study in the History of Cartography”
David Yehling Allen
Colvin & Blake at the “Elms” Albany NY
Circa 1918Curtesy of
Denise CollinsworthHeir of Colvin's brother
![Denizar vianna clap_bio_meeting_rio_dec16th2011 [modo de compatibilidade]](https://static.fdocuments.us/doc/165x107/5444278dafaf9fa4098b47d7/denizar-vianna-clapbiomeetingriodec16th2011-modo-de-compatibilidade.jpg)
