Relief shown by contours and spot heights. Accompanied by structure sections sheet: Diagrammatic structure sections 6, 7, 8 and 9 to accompany map 1463A, Hector Lake (east half) ; map 1464A, Hector Lake (west half) ; map 1465A, Siffleur River (east half) and map 1466A, Siffleur River (west half) / B.H. Ortman. "Base-map at the same scale published by the Surveys and Mapping Branch in 1961." "Printed by the Surveys and Mapping Branch, 1978." "Geology ... based on studies of vertical air photographs (1964-1975) ; ground and air observations by J.D. Aitken, H.U. Bielenstein, D.G. Cook, E.W. Mountjoy and R.A. Price (1964-1966)." Includes location map and index map.