You are viewing a single comment's thread from:RE: Hammerstone Or Cannonball ? Nature Identification Thread @mountainwashereView the full contextsnowyknight (57)in #yourluckyphotos • 8 years ago pages 10 and 11 may have the answer: https://pubs.usgs.gov/bul/0861/report.pdf
Whoa that is a very extremely cool article!!!
Thank you very much @snowyknight!!! ❤ 💎
Glad you like it! Hope it puts some things in perspective (even if it is a bit dated). Cheers! Cannonball!