1. Diane
    Diane September 29, 2015 at 3:37 pm

    Thanks Ray for the great update on electronics. I also love my iPhone on airplane mode. Have used the flashlight feature in addition to the camera and e-games for the evening. I have used a mophi external battery which has a life of about 3 days before needing to be recharged. Good reminder to practice with equipment before hitting the trails.

    Take good care, Diane

  2. Larry Beck
    Larry Beck September 29, 2015 at 4:44 pm

    Ray, I love Gaia on my I-phone 5C. I have traditionally used National Geographic’s California TOPO to plan trips. I found a free online conversion utility that converts .TPO from Nat Geo to .GPX. I can then load the .GPX on my I-phone.

    I have not attempted anything as long as the JMT with my I-phone so I’ll definitely be checking out your charging system.

    Thanks for the post,


  3. George Greeley
    George Greeley September 29, 2015 at 10:29 pm

    Great blog! My son and I hiked the JMT from Tuolumne Meadows to Whitney Portal in July. He brought his Goal Zero Guide 10 solar charger. I had a Mophie battery that would charge quickly and I used it to recharge my iPhone 5S. My iPhone had a JMT app that used the phone’s GPS. I was on Airplane Mode almost the entire time. Amazingly the solar charger worked all day even if it was raining! This was my first hike with a solar charger and now I will take one on every multi-day hike in the wilderness. I have the Fitbit Flex and I’m looking forward to your blog about Fitbit.

  4. John Wiesinger
    John Wiesinger September 30, 2015 at 5:53 am

    Thank you for your weekly communication. I love your commitment and energy.

    After just finishing a section of the JMT – South Lake TH to Whitney Portal, I’m toying with the idea of going naked next year… no electronics, including my phone… just a map, a pencil and my compass. I sense more freedom in doing so.

    Is this a phase I’m going through? Have you had these thoughts, desires… or perhaps have experienced nature in this manner in the past?

    I’m even considering going tent-less. 🙂

    Thanks, Ray!

  5. Harper Hatheway
    Harper Hatheway May 12, 2016 at 9:08 am

    Going to thu hike the JMT in August this year. Haven’t done a section since 1970 with scouts. We did three sections in three years. Zero electronics as you would imagine. 7.5 and 15 min. Topos and a compass.
    This time am considering taking my iPhone 5s and charging system. Of course quite a bit of backup with the essentials. What sort of recommendations and current threads to follow in my run up…
    Love your show,

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