ナショナルジオグラフィックさんのインスタグラム写真 - (ナショナルジオグラフィックInstagram)「Photos by Pete McBride @pedromcbride | Source to Sea: 150 years ago, John Wesley Powell–scientist, explorer, and Union Civil War veteran (he lost his right arm at the Battle of Shiloh)– launched his wooden boat from Green River Station, in the Wyoming Territory, in the first scientific study and expedition down the Green and Colorado Rivers. Adventurers celebrated this historic anniversary with friends at @americanrivers, comparing their own river findings today to what Powell observed a century and a half ago—on the same river with a very different look. Powell and his men traveled for three months downriver to the confluence of the Colorado and Virgin rivers in present-day Nevada, navigating treacherous whitewater and losing supplies along the way. As we mark the 150th anniversary of Powell’s exploration, it's important to amplify his calls for water sustainability and stewardship in the West and nationwide. When it comes to managing our most precious natural resource, much of the next 150 years and beyond will be charted by water. "We are now ready to start on our way down the Great Unknown...We have an unknown distance yet to run, an unknown river to explore. What falls there are, we know not; what rocks beset the channel, we know not; what walls ride over the river, we know not." — John Wesley Powell. #grandcanyon #coloradoriver #Powell150 #rivers #adventure」11月26日 0時43分