RT @USGS: Stone monument no. 60. Washington. Idaho and Washington Boundary Retracement. 1908. #topoTuesday https://t.co/nMUBUvjnbM https://…
3 followers
1,176 followers
RT @USGS: Stone monument no. 60. Washington. Idaho and Washington Boundary Retracement. 1908. #topoTuesday https://t.co/nMUBUvjnbM https://…
4,364 followers
Stone monument no. 60. Washington. Idaho and Washington Boundary Retracement. 1908. #topoTuesday https://t.co/OJnTxrKx59 https://t.co/9syoFJ5Xac
418 followers
RT @USGS: Stone monument no. 60. Washington. Idaho and Washington Boundary Retracement. 1908. #topoTuesday https://t.co/nMUBUvjnbM https://…