Sunday, September 13, 2026

Tom's Thumb - McDowell Mountains

Tom's Thumb is a prominent 140-foot tall Proterozoic granite monolith, formed roughly 1.4 billion years ago. Located in Scottsdale, Arizona, this quartz-monzonite intrusion stands out due to differential erosion, showcasing jagged, blocky terrain that contrasts with the smoother surrounding metamorphic rocks.








Tuesday, September 8, 2026

Mushroom Rock Trail to Sky Island - Sedona

I began my hike on the Boynton Canyon Trail at 8:21 AM. After hiking 1.7 miles in 39 minutes I arrived at the unmaintained trail going to Mushroom Rock and Sky Island. Then it was a 1 mile hike to Mushroom Rock. It took me 1 hour and 25 minutes to get there from the Boynton Canyon Trail. After a short break I continued up to the Sky Island. From there it was 0.4 miles to the far end of the Sky Island. It took me 55 minutes to get there. I was 3.1 miles from the Boynton Canyon Trailhead, and it had taken me 2 hours and 55 minutes to get there. After taking lot of photos I started my hike back down. I reached my mini van at 2:05 PM, and I was hot and exhausted. It was 94 degrees. My hike was 6.3 miles round-trip, and it took me 5 hours and 45 minutes. I also encountered a black-tailed rattlesnake.

"Sky Island" is a local term for the high, isolated sandstone finger or butte between Boynton and Long Canyons. 






























Sunday, September 6, 2026

Peak 2881 - Goldfield Mountains

I began my hike at 11:06 AM, and it was 101 degrees. It took me 1 hour and 6 minutes to reach the 2,881-foot summit. My round-trip hike was 3 miles and it took me 2 hours and 27 minutes.

The peak is primarily composed of colorful Miocene-age volcanic and pyroclastic rock formations.