I added the 1931 maps last night.

The 1946 map tiles have been uploaded and appear to be working now.

I think I've pretty much finished the logic for the page itself. I've rearranged things a bit, so that old link doesn't work anymore. Here is a link...

Donovan said Would there be a way to click on and drag the overlay once we were on a focused area to line up known features? Unfortunately, no-or ...

Thanks, Bryon. I thought I had corrected for the datum (or at least close enough), by using a tool like this that Paul had referred me to: It sh...

Thanks for posting this trip report, Paul. Very interesting stuff. I'll have to go check out the old phone line down there one of these days. I had...

Yea, it would be, but it wouldn't be as cool (or as useful). I'll get it figured out eventually....

All I can tell you it is has to do with some very complicated math (there is a LOT of math used in maps). I do know that the farther west you get, th...

I still have to figure out how to correct the "shift" in the overlay - it has to do with the map datums used on the old maps compared to today. You s...

I have been experimenting with some tools to create online maps from the new historical map scans. I'm still experimenting, but I thought I would pos...

I spent some time this morning updating the maps page and the "old" historical maps page to reflect the new scanned maps (instead of referring to the ...

4611 is a "road", more or less....Actually it wasn't too bad, but there are a few sections that have slumped - and there are the ever present HUGE pot...

Well Don, your clues have confused me (which is not hard to do). I thought you might be referring to Oak Grove Butte, but I don't see any dotted trai...

Donald Presley said So here is a trivia question for you. How many trails in our district go underneath power lines, current and abandoned trails inc...

Amazing report - and even more amazing to me is that he said he didn't bring a map or a GPS to do all this bushwhacking. I wonder what he considers "...