Angostura's suggestion is a good one, that will allow us to test ghaff's conjecture: https://books.google.com/ngrams/graph?content=ski+touring%2Cbackcountry%2C

Angostura's suggestion is a good one, that will allow us to test ghaff's conjecture: https://books.google.com/ngrams/graph?content=ski+touring%2Cbackcountry%2C+hiking&case_insensitive=on&year_start=1800&year_end=2008&corpus=15&smoothing=7&share=&direct_url=t4%3B%2Cski%20touring%3B%2Cc0%3B%2Cs0%3B%3Bski%20touring%3B%2Cc0%3B%3BSki%20Touring%3B%2Cc0%3B%3BSki%20touring%3B%2Cc0%3B%3BSKI%20TOURING%3B%2Cc0%3B.t4%3B%2Cbackcountry%3B%2Cc0%3B%2Cs0%3B%3Bbackcountry%3B%2Cc0%3B%3BBackcountry%3B%2Cc0%3B.t4%3B%2Chiking%3B%2Cc0%3B%2Cs0%3B%3Bhiking%3B%2Cc0%3B%3BHiking%3B%2Cc0%3B%3BHIKING%3B%2Cc0#t4%3B%2Cski%20touring%3B%2Cc0%3B%2Cs0%3B%3Bski%20touring%3B%2Cc0%3B%3BSki%20Touring%3B%2Cc0%3B%3BSki%20touring%3B%2Cc0%3B%3BSKI%20TOURING%3B%2Cc0%3B.t4%3B%2Cbackcountry%3B%2Cc0%3B%2Cs0%3B%3Bbackcountry%3B%2Cc0%3B%3BBackcountry%3B%2Cc0%3B.t4%3B%2Chiking%3B%2Cc0%3B%2Cs0%3B%3Bhiking%3B%2Cc0%3B%3BHiking%3B%2Cc0%3B%3BHIKING%3B%2Cc0 https://books.google.com/ngrams/graph?content=ski+touring%2C... The establishment of Backcountry Access in 1994 would also seem to a compelling countervailing argument against my recollection.