Wahtum Lake Map

[MarkInTheDark]

[miah66]

Hey, that's pretty handy!

[retired jerry]

I stuck it in field guide if that's okay

Can I attribute it to MarkInTheDark or is there a better name?

[aiwetir]

Nice useful map.

Here's an interesting image of GPS traces laid over the USGS topo. The topo is quite wrong in many way and sometimes a hand drawn map that contains useful information is better than any that technology will provided.

[Chase]

I like the ripples in the water.

[MarkInTheDark]

Glad you guys like it, I got it from a friend at the USFS/Hood River, I not sure how it was drawn...

Mark

[Don Nelsen]

I suppose I should chime in too. The Wahtum Lake area used to bother me too as the USGS maps were so obviously in error so I set about to make my own like you guys did. Here is the one I put together, finishing in 2011 with the NG Topo software and lots of trips with my GPS. I think I posted this previously, but don't remember when if I did. I think it agrees perfectly with aiwetir's map except for the track up to Chinidere. I've included mileages on this as well.



dn

[aiwetir]

Ok, this might be annoying, but I like to compare things so here's this. The blue lines are from Strava users (and maybe some other sources) and are multiple lines, so the cumulative number of tracks makes for an accurate map.

It just looks like the background map that I used (USGS topo on OSM) might just be offset making the whole thing look shifted, so Chinidere is in the right spot, the map isn't. Don's map is pretty accurate also. I laid Don's tracks and the blue Strava tracks over each other, leaving the offset alone, then overlaid a Mapbox Outdoor map over it all which mirrors the blue Strava tracks. I aligned all the trails on the Mapbox map using the Strava tracks (OSM sourced) and the only criticism I have is that maybe I rounded too many corners (and the yellow Mapbox uses isn't visible enough.

I don't know what source Mapbox uses for their topography.

[Webfoot]

Thanks for your work on the local OSM maps. They are my go-to resource for hiking.

There appears to be a missing connector (on the Mapbox map) which on Don's map has the labels .09 and .06. Is that an intentional omission?

[aiwetir]

Thanks for your work on the local OSM maps. They are my go-to resource for hiking.

There appears to be a missing connector (on the Mapbox map) which on Don's map has the labels .09 and .06. Is that an intentional omission?

I just added it, I guess I just didn't see it.