Thursday, October 23, 2008


This is a Choropleth map which uses various shades of green to represent the number of eligible voters in each ward of the City of Kawartha Lakes. The wards are the areal units on this variation of a thematic map. http://www.geocities.com/stevejford/KawarthaVoters.jpg


This is a dot distribution map of the state of Wisconsin. The map uses dots to show where concentrations of lichens are distributed throughout the state. http://www.botany.wisc.edu/wislichens/dots/LOBPUL.gif


Here is a map that shows infant mortality rates for various areas within San Diego. The map can be considered propaganda as it relates the mortality rates to mortality rates in other countries, some of which are developing. This map aims to influence opinions and possibly the actions of the viewer by playing upon emotions.  http://go.owu.edu/~jbkrygie/krygier_html/geoe_222/geog_222_lo/geog_222_lolzgr/infantmortal.jpg


Here we see a hypsometric map which by definition depicts elevation changes on a surface. This map happens to be of a portion of the moon's surface. Changes in elevation on the moon are represented by a spectrum of colors.  http://googletutor.com/wp-content/uploads/2007/09/gmoon_elevation,png

This thematic map is of Montgomery County in Maryland. It uses variations in coloring to illustrate the population of various areas within the county and how those areas relate to one another spatially.  http://www.directionsmag.com/images/companies/spatialinsights/proxDem1.gif

Thursday, October 2, 2008


This PLSS map is from the Bureau of Land Management. Is depicts the PLSS for Walton County, Florida, which just happens to be where I live. The BLM website that this comes from has maps at the state and county level for the PLSS. In conjunction with this information, one can find out where National Parks are, what areas are under Department of Defense control, and so on.  http://geocommunicator.gov/LSIS6/map.jsp


This map is a cadastral map from 1736. It was used to delineate where in Montville, Connecticut the Mohegan Indians were granted rights to live. It is interesting to note that Britain ruled that the Mohegans' land consisted of much more than this area in Connecticut in 1705, however, that ruling was not implemented on this side of the Atlantic, as can be seen here. This is a great example of how land partitioning is a social institution. The bottom of the map consists of a note from the county surveyor asserting the legitimacy of the map. This map was originally on HistoryNYC.com, a map vendor. http://historynyc.com/products.asp?cat=53

This is a topographic map of the Grand Canyon, approximately the area that the National Park resides in. Just having returned from a trip to the Grand Canyon, this map has significance for me. Note how closely the contour lines are placed within the canyon, representing the sheer cliffs and steep walls. Contrast that with the sparse contour lines up on the rim of the canyon where the land is fairly flat. This map originally came from a link on a professor's web page that teaches a class in Physics at Davidson University in North Carolina. http://webphysics.davidson.edu/faclty/dmb/py220/grandcanyon/jpg