About the Maps

All map soundings were completed in a paddled canoe and/or kayak. Electronics are the latest in GPS receiver-enabled portable chart plotters (Navico). High-senstivity hand-held devices (Garmin) captured the surface data (campsites, portages, etc). An average spacing of 60 feet (20 meters) between transects was maintained to ensure thorough coverage and minimize gaps. Coordinates with their associated depths were sampled at a rate of 5 per second. At least one full perimeter pass within 12 feet (4 meters) or less of shoreline (including islands) was made to delineate the waterbody's extent.

Following each field trip the data is downloaded, exported, cleaned and processed through GIS mapping applications. During contour generation a spacing of 3 feet (1 meter) was selected as the interval for the majority of the lakes. This helps ensure a detailed representation of subsurface relief features. Maps with extensive areas of deep water or very steep shorelines used a spacing of 5 feet (1.75 meters) between contours for readability and differentiation purposes. Eustache lake, the deepest in the park with water well over 300 feet deep, uses a 15 feet (5 meter) intermediate contour interval and an Index Interval of 60 feet (20 meters).

Each map identifies with GPS accuracy (avg 12-16 ft or 4-6 meters) the campsite locations, portage landings and trails, wetlands, vegetated islands, large emergent rocks, creek/river inflow/outflows, maximum depth and many other topographic features.


Although very precise, there’s been no attempt to identify water hazards such as fallen trees, sunken timber, dead-heads, submerged boulders or small shoreline hugging emergent rocks that many of these lakes and rivers contain.  It’s always up to the individual boaters and swimmers to ensure their own, that of their group and their vessel(s) safety.   

Depending on the season, lake and conditions, water depths may vary from those identified.  Any depth change will be applicable and consistent throughout the whole of the lake.  However the underlying terrain, its relationship and structure to the neighbouring features will remain unaffected.   Higher or lower water levels in addition to windy conditions may cover or expose emergent rocks or wood.  Always be on the lookout for navigation hazards and changing weather conditions.  

Algonquin Park campsites may be subject to change annually.  Existing sites may no longer be available (e.g. retired) and/or some may exist (reopened or created) that are not currently identified on these maps.

About the Author

Mr Molson has a professional and educational background in Fish and Wildlife, Biology, GIS Applications, Cartography, Technical Writing, System Analysis and Information Technologies. He has spent the last 20 years as a mapping and IT Consultant working for private industry (JWRL Geomatics Inc, Keplers Space Inc, etc) and various government agencies including the RCMP, Veterans Affairs Canada, NRCan, Department of National Defense, House of Commons, BC Ministry of Forests and the Canadian Space Agency. His professional career and personal interests have taken him to both coasts, travel across Canada, north to Iqaluit, Yellowknife and various destinations overseas. He has fished throughout this country, worked as a ranger, tree planter, and fishing guide in his youth and has caught most every species Canada has to offer in both salt and fresh water environments. During the Summer of 1990 he was involved in an extensive fish distribution study in Algonquin Park. Partnered with the Ministry of Natural Resources and Royal Ontario Museum they reached every corner of the Park and traveled extensively within her backcountry's West - East and North - South routes. Since that experience Algonquin Park has always remained one of his and his family's favorite tripping and fishing destinations.

During the course of this project he has caught and released hundreds of lake trout, brook trout and splake from the beautiful waters of Algonquin Park. He has also landed and released hundreds of other game fish during these pursuits, including smallmouth bass, largemouth bass, northern pike and walleye. He currently resides in Ottawa, Ontario Canada.

About Algonquin Provincial Park

Algonquin Provincial Park contains over 1400 named lakes and rivers found within an area covering over 7500 square kilometers in eastern Ontario.  Due to motorboat restrictions,  the vast majority of these are navigable by canoe and/or kayak only.  Her waters contain some of the best fishing in the province, most notably for brook and lake trout.  Hundreds of lakes support these char populations, including a few dozen with a managed (e.g. stocked) fishery of brook trout and splake.  The variety available to the angler is impressive with smallmouth bass, largemouth bass, northern pike, walleye, muskellunge, channel catfish, whitefish, ling, yellow perch and pumpkinseed all possible targets depending on the waters fished and season. 

Within her boundaries lies the potential of thousands of unique paddling routes spanning 5 different watersheds with opportunities to fish over half a dozen or more species in one trip.  Her unique geology; diverse flora and fauna; hiking, boating, cycling, skiing, camping, swimming, fishing activities; museums; her national cultural and economic history to the area - all of this has helped create a natural priceless heritage known world-wide that attract hundreds of thousands of visitors every year.