Re: Yosemite Benson Lake Matterhorn Canyon TR
Posted: Tue Aug 17, 2010 10:46 am
Regarding the incorrect National Geographic topo maps: The first revised version of their maps for Yosemite were indeed incorrect. It was something along the lines of them calculating the mileage on the trail after they had ortho-rectified them for the maps, ie not showing every little switchback on the large scale topo. Check the distance of the Grand Canyon of the Tuolumne between Pate Valley and Glen Aulin, the longest section of trail in the park without a junction, so the difference will be the largest. It should be something like 14 or 15 miles and the incorrect map shows it as 12 or 11 miles, i forget the numbers exactly. I was able to return mine as I suspected the errors quickly after i got it. The folks at the permit station filled me in with the rest of the info. Not sure if you can get a refund now, as it has been a number of years, but it would be nice to know if you have an incorrect map.