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Source Description
Regions and Seasons: Use of the curving isotherm allowed 19th-century mapmakers to break with the ancient and rigid concept of five climatic zones aligned with latitudes, while providing more accurate data and the ability to form relationships using this information. This 1868 map of Alaska features isotherms drawn by mapmaker Lorin Blodget, whose technique made vast amounts of environmental data easy to understand. Blodget's data was also used by government offices to examine the financial capacity of the Alaska territory, as the nation was rapidly expanding into the West. Red lines indicate temperatures and average readings throughout the territory.
Scholar Source Context
Document identity
localId
4m90fb83c
label
Colton's map of the territory of Alaska
core
obj
dtoType
map
pageCount
1
Source metadata
id
4m90fb83c
contentType
map
stage
normalized
title
Colton's map of the territory of Alaska
description
Regions and Seasons: Use of the curving isotherm allowed 19th-century mapmakers to break with the ancient and rigid concept of five climatic zones aligned with latitudes, while providing more accurate data and the ability to form relationships using this information. This 1868 map of Alaska features isotherms drawn by mapmaker Lorin Blodget, whose technique made vast amounts of environmental data easy to understand. Blodget's data was also used by government offices to examine the financial capacity of the Alaska territory, as the nation was rapidly expanding into the West. Red lines indicate temperatures and average readings throughout the territory.
date
["1868"]
year
1868
rights
No known copyright restrictions.
rightsUri
No known restrictions on use.
reuseAllowed
no restrictions
language
English
identifierLocal
06_01_011367
creators
G.W. & C.B. Colton & Co
institution
Boston Public Library
collections
Norman B. Leventhal Map & Education Center Collection
subjects
Atmospheric temperature--Alaska--Maps
Alaska--Maps
1868
subjectsGeographic
Alaska
North and Central America
United States
genreBasic
Maps
typeOfResource
Cartographic
country
United States
state
Alaska
thumbnailUrl
largeImageUrl
pageCount
1
source
import
pubPlace
New York
publisher
G.W. & C.B. Colton Co.
Source extras
institutionArkId
sf268508b
collectionArkId
41688024w
schema:latitude
65
schema:longitude
-153
extent
1 map : col. ; 37 x 61 cm.
notes
Relief shown by hachures and spot heights. Depths shown by soundings.
Insets: [Location map] -- Diagram of the Middle States on the same scale as the main map.
Includes isothermal lines.
Decorative border.
"Entered according to Act of Congress in the year 1867 ..."
hasTranscription
no
dcId
4m90fb83c
type
map
Single page context
seq
1
pageIndex
0
type
photo
mediaId
b8a5d553f6b65cfe