AUTOMATIC CONTOURING 
RENFREW INTERNATIONAL TEST AREA 
!: 25000 
ORIGINAL UNEDITED PLOT, PRODUCED BY 
THE STEREOMAT. 
PHOTOGRAPHY-WILD RC8,f«i$3mm 150 000 
PLOTTING SCALE 1:10 000 
CONTOUR INTERVAL 10m 
PLOTTED ON NISTRI PHOTOMAPPER 
EQUIPPED WITH THE STEREOMAT, DEVELOPED 
BY HUNTING SURVEY CORP. LTD. TORONTO 
PHOTOGRAMME TRIC RESEARCH NRC. OTTAWA, CANADA 
MAY 1960 
LEGEND 
X X --CONTOURS REQUIRING MORE EXTENSIVE EDITING. 
IN MOST INSTANCES THE EXACT LOCATION OF CONTOURS 
IS UNCERTAIN BECAUSE OF THE FLATNESS OF THE 
TERRAIN. 
TOTAL PLOTTING TIME — 2 HRS., 05 MIN.