Jen went hiking Green Mountain October 17, 2015 6 miles 0 feet gained Ole's Cave 0 Fun fall day exploring a lesser known lava tube. More from Jen ONP Family Trip August 15 to August 20, 2026 ONP Marmoteers August 3 to August 6, 2026 Eliot Glacier August 3 to August 4, 2026 Prusik Peak July 21 to July 24, 2026