Scale 1:50,000 at lat. 48⁰08ʹ ; Mercator projection (W 116⁰35ʹ--W 116⁰15ʹ/N 48⁰20ʹ--N 48⁰00ʹ).
Note:
Depths shown by isolines and soundings. Relief shown by contours and spot heights. Title from JPG title screen (viewed on July 28, 2010). "Soundings in feet." Includes text and source diagram.