New USGS 24k Legacy Topo Map
- Thread starter Boyd
- Start date
Checked again, and at the end of the 24 hour period there were 125 unique IP addresses and about 650MB of data transferred. That probably doesn't really represent 125 people however. Yes, I would like to create a useful site for more people, which is why I am concentrating on maps of a larger region. It seems to be working, because I see more visitors from the states that are covered by the 24k, 62k and Mid Atlantic LIDAR maps. Yesterday there was significant usage from people in Vermont, Virginia and Maryland, for example.
Damascus is an interesting little town. Twice I've "biked" like 17mi barely having to peddle!
I look at maps south of there in TN virtually checking out property. You are starting to dip into the area
If you're interested in statistics, here's as breakdown of the quadrangle dates. I have not researched it carefully, but believe these are the original publication dates and it's possible that some of them were subsequently revised with new features. The whole map contains 5,667 quadrangles which have been processed into about 10 million map tiles with a size of around 85 gigabytes.
Looking at the bigger picture, there are about 54,000 quadrangles in the "lower 48" states, so I've only covered about 10%. Have been working on this project for around 4 months now, although I've been working on the historic 62k maps at the same time. Continuing at the same rate, it would take about 3 more years to map the whole country.
Looking at the bigger picture, there are about 54,000 quadrangles in the "lower 48" states, so I've only covered about 10%. Have been working on this project for around 4 months now, although I've been working on the historic 62k maps at the same time. Continuing at the same rate, it would take about 3 more years to map the whole country.
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Just completed a big westward expansion of this map with 1,764 additional 24k quadrangles, bringing the total to 7,438 quads (around 13 million map tiles). This adds full coverage of Ohio plus expanded coverage of Michigan, Kentucky and Indiana. The Western border of the map is now near Bloomington, Indiana with Sault Sainte Marie, Michigan near the North edge. Here's an updated summary of the quadrangle dates.
As usual, you might not be able to immediately access the new part of the map due to browser cache issues. Clearing the cache usually fixes this problem.
As usual, you might not be able to immediately access the new part of the map due to browser cache issues. Clearing the cache usually fixes this problem.
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