Layer Name:	Historical Land Divisions (formerly Ahupuaa layer)

Coverage Name:	HistLandDiv

Layer Type:	Polygon

Status:		Under development by DLNR/Historic Preservation Division.

Geog. Extent:	Island of Oahu only

Projection:	Universal Trans Mercator, Zone 4, Meters

Datum:		NAD 83

Description:	Historical land division boundaries for the island of Oahu.
		Polygon coverage of O`ahu showing pre-Mahele (ca.1850)
                 ahupua`a boundaries, and coastlines ca. 1900.
		Commonly referred to as ahupuaa boundaries, but these boundaries
		changed and evolved over time, therefore, Historic Preservation Division 					
		refers to the layer as historic land divisions.
		
Source:		State Department of Land and Natural Resources, Historic 
		Preservation Division, 1996.	

History:	The ARC/INFO data transmitted to the Office of Planning contain information on the 			
		ahupua`a (traditional land division's) of O`ahu. The GIS representation of O`ahu ahupua`a 
		is derived from information in an article by L. Snakenberg named "O`ahu Pre-Mahele 
		Moku and Ahupua`a" published in "Historic Hawaii"  Vol. 16, No. 6 (June, 1990).  
		Earlier, in 1987 the Hawaiian Studies Institute of the Kamehameha Schools published a map 
		illustrating the same material.  

      		These are all unedited, draft versions current to January 1995.  The
		projection is the Universal Transverse Mercator (zone 4), originally referenced 
		to the Old Hawaiian Datum (Clarke 1886 Ellipsoid).  (Note:  converted to NAD83
		datum in 2002).  The USGS 7.5' quadrangle maps are the primary references for the 
		lines used in the development of this data.   


		
Attributes:		Polygons:

			AREA		area of polygon (sq. meters)
			PERIMETER	perimeter of polygon (meters)
			AHUPUA#		Polygon internal number (for Arc/Info use)
			AHUPUA-ID	Polygon ID (for Arc/Info use)
			AHUPUAA		Ahupuaa Name
			DISTRICT	District Name 

			Arcs:

			FNODE#		From node # (for Arc/Info use)
			TNODE#		To node # (for Arc/Info use)
			LPOLY#		Left poly # (for Arc/Info use)
			RPOLY#		Right poly # (for Arc/Info use)
			LENGTH		Length of arc in meters
			HISTLANDDIV#	Arc internal number (for Arc/Info use)
			HISTLANDDIV-ID	Arc ID (for Arc/Info use)
			FLAG		Flag	
			SOURCE		SHPD library source
			COAST		Coastal Arc
			DISTRICT	District Arc

		
		
		
	
Contact:	Joan Delos Santos, Office of Planning, State of Hawaii, 
		PO Box 2359, Honolulu, Hi.  96804; (808) 587-2895.
		email:  JDelos_Santos@dbedt.hawaii.gov

		or

		Eric Komori, Historic Preservation Division, Department of Land
		and Natural Resources, State of Hawaii; (808) 692-8020
		email:  eric_k_komori@exec.state.hi.us