Works Cited
The Bale Mountains National Park Area, Southeast Ethiopia, and Its Management, Jesse C. Hillman. Mountain Research and Development, Vol. 8, No. 2/3, African Mountains and Highlands pp. 253-258. (May - Aug., 1988).
GIS Concepts and ArcGIS Methods 3rd ed, David M. Theobald. Conservation Planning Technologies, 2007.
A GIS Method for Park Trail Design, Xin Lu, Wie-Ning Xiang, and Marion Hickok GIS/LIS p 555-559. (libraries.maine.edu/Spatial/gisweb/spatdb/gis-lis/gi94069.html) 1994.
GIS/GPS Trail Conditions Inventories: A Virtual Toolbox for Trail Managers, Greg Bruehler. (gis.esri.com/library/userconf/proc04/docs/pap1590.pdf) June 2004.
Limitations of GPS and GIS When Determining Slope for Hiking Trails in Wooded Areas, Sara Sweet. (gis.ucsc.edu/Projects/student/sweet.pdf.) March 2000.
http://www.13suns.com/bale.html
http://realethiopia.com/nature/natural-park/bale-mountains-national-park.html
http://www.selamta.net/bale_mountains-national-park.htm
World Heritage Site, Bale Mountains National Park: http://whc.unesco.org/en/tentativelists/5315/
www.ilri.org/gis/search.asp?opCountry=like&tbCountry=Ethiopia&opTheme=Like&tbtheme=&ob Boolean=&ANDdisplay=Brief&Submit1=submit