Revisions for Big River in the new edition of the Paddler's Guide...

[fishinwrench]

48 minutes ago, tjm said:

the question was " how did the map maker measure miles on an unmarked waterway?", and since they did that in on the original maps in 1965, their method must still exist?

Aerial photos and math.  

[ColdWaterFshr]

57 minutes ago, tjm said:

If you have and can use the topo map, why buy the Guide?

Uh, . . . Beavis,  . . . .because it shows only the parts that I need to see, and it would save me from having 50 or so 2' x 3' topo maps compared to one nice, neat spiral bound booklet that has been an indispensable guide book for me for only about the last 40 years.

[Flysmallie]

1 hour ago, tjm said:

That would keep most people from going to work or out to eat. But, the question was not and still is not "where am I?" the question was " how did the map maker measure miles on an unmarked waterway?", and since they did that in on the original maps in 1965, their method must still exist?

Anyone using a gps or a smart phone would not be using the MDC book on the water anyway.

If you have and can use the topo map, why buy the Guide?

The guide makes it much simpler. But you are right, all you really need is a good map. And all maps have a scale. And that’s how you measure the river. It’s pretty basic stuff. 

[Gavin]

OnX Hunt is my go to map these days. It’s great for finding locations in the dark. 

[Terrierman]

4 hours ago, Flysmallie said:

It's 2023. 1965 doesn't matter anymore. But yes I can mark a map and make my way downstream. That's what we did in the early 2000's. There were no smart phones then either. If you can't figure out where you are from a paper map you should probably just stay in your house. 

Last I looked it said 2024?  And yup, there is such a thing as a landmark,

[Terrierman]

3 hours ago, tjm said:

That would keep most people from going to work or out to eat. But, the question was not and still is not "where am I?" the question was " how did the map maker measure miles on an unmarked waterway?", and since they did that in on the original maps in 1965, their method must still exist?

Anyone using a gps or a smart phone would not be using the MDC book on the water anyway.

If you have and can use the topo map, why buy the Guide?

Why are you such a contrarian?  You mad about something?

[Terrierman]

3 hours ago, tjm said:

That would keep most people from going to work or out to eat. But, the question was not and still is not "where am I?" the question was " how did the map maker measure miles on an unmarked waterway?", and since they did that in on the original maps in 1965, their method must still exist?

Anyone using a gps or a smart phone would not be using the MDC book on the water anyway.

If you have and can use the topo map, why buy the Guide?

It's a great portable resource is one possible reason...

[tjm]

3 hours ago, ColdWaterFshr said:

Uh, . . . Beavis,  . . . .because it shows only the parts that I need to see, and it would save me from having 50 or so 2' x 3' topo maps compared to one nice, neat spiral bound booklet that has been an indispensable guide book for me for only about the last 40 years.

but then you have no way to use the topo map to measure your mileage as was proposed.

[tjm]

1 hour ago, Terrierman said:

Why are you such a contrarian?  You mad about something?

not contrary at all I asked a question from the mapmaker and I get all these how to find the supermarket answers.  Do  you have an odometer in your boat? Did you measure the miles for the Guide? so far every answer to my post has been by a contrarian trying to assure me that they are secret mapmakers.  No one named Al has replied.

[tjm]

4 hours ago, fishinwrench said:

Aerial photos and math.  

Thanks Al. So you brung the aerial photos and and the rough drawn map both with you in the canoe? slide rule calculations or computer?