Two of the world’s premier trail running venues, California’s Sierra Nevada and the Swiss Alps, are where we have spent the bulk of the last 30 years. The enthusiasm we have for running through these ranges resulted in our producing the trail running guidebooks to both. Sierra Trail Runs will be released in 2022 and Run the Alps Switzerland was published in 2018. Along with Run the Alps Switzerland came Elevation : The Alps Trail & Peak Running Resource, which launched with 30 runs but today has 80, including two multi day runs we developed ourselves, the Via Grischuna and what we feel is the greatest run in the Alps, the Via Valais.