No doubt the dates cited by Lee, MA, Rocco, and etc. are correct in regards to park-wide projects, but it is clear that wooden walkways existed well before the 1940s. These may have been short and restricted to the surrounds of individual features, but for a few examples look at Haynes photos 22637 (Dragon's Mouth), 11125 and 23463 (Mud Volcano), 16049 (Morning Glory -- I think that's a walkway on the far side of the pool), and perhaps even better a photo from the USGS digital photo file labeled "Black Growler 1924" that clearly shows a wooden walkway and bridge complete with wooden railing. Lastly, while I can't seem to locate it at the moment, someplace there's a picture of Porcelain Basin that shows a wooden plank-like walkway that extends well out into the basin; I somehow recall the date of 1922 for that one. Scott Bryan In a message dated 6/2/2014 11:17:17 A.M. US Mountain Standard Time, lee_whittlesey at nps.gov writes: For information on the UGB walkways, see the Geyser Gazer pages on Facebook. M.A. Bellingham and I both made some comments there. The first formal walkways that I know of at UGB were the asphalt ones, built in (as I recall) 1934. Rocco Paperiello has posted some photos of this construction from the park's black scrapbooks on his Facebook page. The park's actual move to wooden boardwalks (what the 1946 Report of the Superintendent called "duckwalks") began that year, and continued being built during the period 1946-1950 in various places. -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20140602/853a31be/attachment.html>