http://www.canyoneering.us Tue, 10 May 2011 12:38:44 +0000 en hourly 1 http://wordpress.org/?v=3.1.2 http://www.canyoneering.us/canyon-ratings/ http://www.canyoneering.us/canyon-ratings/#comments Sun, 04 Jan 2009 22:05:12 +0000 rcwild http://canyoneering.us/?p=171 Details of the ACA Canyon Rating System – the most widely used canyon rating system in the Americas – are available for download in PDF format.

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