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Family Nature Summits: Black Hills Summit
Sign-ups will officially open on June 28th at 9 PDT/ 11 CDT/ 12 EDT. Activities without signup limits are available now. Need help? The Summit Handbook and our pick a hike guide are helpful resources! Email [email protected] with additional questions or message us in Sched!

Session availability is subject to change due to weather, availability, and interest. Classes with fewer than 5 participants are subject to cancellation. 

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Tuesday, August 4
 

7:30am MDT

Hike - Mystery Hike (vigorous)
Limited spots
Tuesday August 4, 2026 7:30am - 12:00pm MDT
Limited Capacity seats available
2.5 mile, 700 foot total climb "vigorous" lollipop (mostly out & back) hike; 47 min. drive.

Same hike as the afternoon Mystery Hike. We'll almost certainly not see anyone else. It's the first Summit Mystery Hike since Dave Egan's one in the Redwoods in 2022, and the first with Dave L. since 2016 in New Mexico (like this one, historical sites are involved). Avoiding the thigh-high poison ivy along 20% of the trail is possible, but those with more susceptibility may want long pants. It's pleasantly shady 4/5 of the way.... Any more details, and it wouldn't be a mystery!
Faculty
avatar for Dave Linthicum

Dave Linthicum

HikeDirector,Orienteering,AdventureRace, Faculty
Dave has put his MA in geography to use in over 65 nations while glacier-trekking up to 20,000 ft. (Pakistan, Kazakh/Kyrgyz-stan, Nepal, Andes, Caucasus, Alps, Atlas, & in 2022 a 105-mile trek to Bhutan's northern-most tip)... all with Peggy Brosnan. They've done kayak camping in... Read More →
Tuesday August 4, 2026 7:30am - 12:00pm MDT

8:00am MDT

Hike - Cathedral Spires / Sunday Gulch - all day (strenuous)
Limited spots
Tuesday August 4, 2026 8:00am - 3:30pm MDT
Limited Capacity seats available
6.3 mile, 1300 foot total climb "strenuous"; one-way hike; 42 min. drive each way.

This gem of a route is simply the most lake and rock spire scenery one can pack into a hike. Not to be missed.** To make it more accessible & enjoyable, we will self-select into two groups. The group feeling a bit less fit will start from Cathedral Spires Trailhead, nicely providing an afternoon option for doing as little or as much of the Sylvan Lake & Sunday Gulch loops as desired. The other half will start on those loops and will have no options to skip anything in the afternoon. Your group may (or may not) switch leaders when you pass each other a bit before lunch.

**If not up for 1300 feet of climb(!), please choose, for some of the same scenery, the Cathedral Spires Hike, or one of the Summit rambles at the iconic, dramatic Sylvan Lake.
Faculty
avatar for Amy Hahn

Amy Hahn

Hike Leader, Faculty

avatar for Nigel Dabby

Nigel Dabby

Hike Leader, Faculty
Nigel Dabby lives in Martinez, CA, and has been hiking, biking, climbing, backpacking, and skiing for more decades than he cares to admit. His initial introduction to the mountains and the outdoors was in his mid-20s and it took place in the Himalayas, initially in the Darjeeling area in Indi... Read More →
Tuesday August 4, 2026 8:00am - 3:30pm MDT

1:00pm MDT

Hike - Mystery Hike (vigorous, same as the morning mystery hike)
Limited spots
Tuesday August 4, 2026 1:00pm - 5:00pm MDT
Limited Capacity seats available
2.5 mile, 700 foot total climb "vigorous" lollipop (mostly out & back) hike; 47 min. drive.

Both time slots above are the same hike, on which we'll almost certainly not see anyone else. It's th first Summit Mystery Hike since Dave Egan's one in the Redwoods in 2022, and the first with Dave L. since 2016 in New Mexico (like this one, historical sites are involved). Avoiding the thigh-high poison ivy along 20% of the trail is possible, but those with more susceptibility may want long pants. It's pleasantly shady 4/5 of the way.... Any more details, and it wouldn't be a mystery!
Faculty
avatar for Dave Linthicum

Dave Linthicum

HikeDirector,Orienteering,AdventureRace, Faculty
Dave has put his MA in geography to use in over 65 nations while glacier-trekking up to 20,000 ft. (Pakistan, Kazakh/Kyrgyz-stan, Nepal, Andes, Caucasus, Alps, Atlas, & in 2022 a 105-mile trek to Bhutan's northern-most tip)... all with Peggy Brosnan. They've done kayak camping in... Read More →
Tuesday August 4, 2026 1:00pm - 5:00pm MDT
 
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