Electrician 29 Posted January 8 Share Posted January 8 So looking at topo maps and mining symbols: ADIT (Y) symbols are pointed all over the place. Is there a reason for their orientation on maps? Quote Link to post Share on other sites
clay 1,053 Posted January 8 Share Posted January 8 The long leg of the "Y" indicates the direction of the adit. 1 Quote Link to post Share on other sites
Electrician 29 Posted January 8 Author Share Posted January 8 6 minutes ago, clay said: The long leg of the "Y" indicates the direction of the adit. this seems weird when looking at the side of mountains and adit symbols that point downgrade Quote Link to post Share on other sites
chrisski 855 Posted January 10 Share Posted January 10 You may have found this by now, but here’s symbols https://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf You may have also noticed, but the type of symbols you mentioned like adits and tunnels have been removed from the latest USGS maps, so you need to use older maps. I like the ones from the 70s and older. At least you can download them for free from the USGS store. Occasionally I find a good special map. 1 Quote Link to post Share on other sites
Electrician 29 Posted January 10 Author Share Posted January 10 3 hours ago, chrisski said: You may have found this by now, but here’s symbols https://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf You may have also noticed, but the type of symbols you mentioned like adits and tunnels have been removed from the latest USGS maps, so you need to use older maps. I like the ones from the 70s and older. At least you can download them for free from the USGS store. Occasionally I find a good special map. That is what I needed thank you. And yes, I have noticed they have removed them from the latest. Which is baffling. Quote Link to post Share on other sites
GotAU? 106 Posted January 23 Share Posted January 23 (edited) On 1/10/2021 at 9:05 AM, Electrician said: That is what I needed thank you. And yes, I have noticed they have removed them from the latest. Which is baffling. Those with local knowledge of such places are getting old and are disappearing too. By removing those features from maps, it will not take long for all of them to be forgotten. Pretty sad. Edited January 23 by GotAU? 1 Quote Link to post Share on other sites
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