What is Reddit's opinion of US Topo Maps Free?

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US Topo Maps gas a free app with a 13.00 upgrade if you want, but the free version seems nice, I haven't got a chance to really test it out. https://play.google.com/store/apps/details?id=com.atlogis.northamerica.free

I am a HUGE fan of The National Map for where I live. The android app US TOPO MAPS on android (https://play.google.com/store/apps/details?id=com.atlogis.northamerica.free&gl=US) is expensive, but had literally dozens of maps built in, including the national map, and you can save them offline for places without signal.

So before I shared the layer, I went back just to double-check that the topographic maps matched where the pins were on Google maps and sure enough it looks like there was an update from their satellite data overlay or their GPS positioning because every pin that I put in is off by about 10m to the northwest.

I can remake this layer but it will take some time and I probably will not have time to do it for a few days, but here is the general process in case you want to get started while you wait for my completion:

I use this app for Android, US Topo Maps

https://play.google.com/store/apps/details?id=com.atlogis.northamerica.free

• The layer that I use is "US topo traditional drgs"

• Centered roughly on the point: https://maps.google.com/maps?q=46.101834123,-122.220947742

• view the map legend, the icons that appear like a slanted upside down "Y" indicate a cave entrance, they sort of look like this "ʎ"

• drop a pin on one of those markers, share the location, copy the shared location into Google maps, place a pin in Google maps marking the cave entrance on satellite view.

There was a report that I read or maybe it was a website and it listed a huge variety of caves up there that were already known and named, let me do some digging later today or the next few days and update this with the name of the website or the report (I remember finding it and reading it sometime back between 2014 and 2017)

I used this one, generically titled "US Topo Maps," today on a big hike in the Rockies and it worked flawlessly. You have to remember to load the maps into the cache before you leave cell/wifi -- and I haven't tried restarting the phone to see it if it keeps then -- but otherwise it was all the things I've never quite found in a topo app.

I use the US Topo Maps app because it has waypoints and mutherfucking LIDAR data...

There's this app. It's free so it contains adds. There is a pro version that costs $13. https://play.google.com/store/apps/details?id=com.atlogis.northamerica.free