The road to your own record
Picture the course in advance
and find the pace that fits you.

The city you want to run becomes your next trip.
THE DREAM
Runs Miller Park and Ridgeline Trail at Castle Rock with constant elevation changes—a course.
Not technically complex but challenging; excellent scenery throughout.
Suits both trail-new and experienced runners alike, serving as prep for summer ultramarathons.
Picture the course in advance
and find the pace that fits you.
Streets lined with cheers, runners all around.
You'll be part of that scene.
Take it slow with the finish still in you,
and meet the city all over again.
From the joy of finishing to the tough moments — read what runners wrote themselves.
No runner reports yet. We'll add them here as they come in.
Preview the course and read what runners who went before you wrote.
Aravaipa Running
This may be from a past edition. Check the organizer for this year's course and operations.
YOUR ENTRY
Here are the ways to enter and what each requires.
Check the organizer's page for whether entries are open.
subject to change — verify officially
Organizer's pagesubject to change — verify officially
Organizer's pagesubject to change — verify officially
Organizer's pagesubject to change — verify officially
Organizer's pageRACE WEEK
Know the course and time limit, and race day comes into focus.
From the 2026 editionThe events consist of 50K, 25K, 10K, and 5K.
Start is at Castle Rock, CO at 6:00 AM local time.
Finish line is Philip S. Miller Park.
Not yet confirmed in the official race guide
Pick up your bib, check your wave.
So on race morning, you can just run.
No public transit. Philip S. Miller Park, 1375 W Plum Creek Pkwy, Castle Rock, CO 80109 — Miller Park & Ridgeline Trail systems.
Official Ultrasignup/Aravaipa Running page confirms the venue address in Castle Rock, CO;
check-in Friday Aug 28, 5:00-7:00 PM, race starts Saturday Aug 29, 5:00-8:00 AM (staggered by distance).
DISCREPANCY RESOLVED: this is NOT the well-known 'Rock Hawk Trail Races' at the Rock Hawk Effigy near Eatonton, Georgia (Lake Oconee) —
this is a different,
same-named 50K/trail race series by Aravaipa Running held at Philip S. Miller Park / Miller Park & Ridgeline Trails in Castle Rock, Colorado.
The 'Castle Rock' city listed in the source database is correct;
the Georgia venue is an unrelated race.
Suburban city park with onsite parking — no public transit, car access recommended.
Same venue — Philip S. Miller Park, Castle Rock, CO.
Official page indicates start and finish are co-located at Philip S. Miller Park.
No shuttle bus service mentioned in official materials.
No dedicated transit card system found for this race;
Rock Hawk (Castle Rock, likely CO) is a rural trail venue with standard car access and no relevant fixed-route transit serving the start.
Your start time, fuel and bag drop.
Know them ahead and the run feels easier.
Aid stations operate without disposable cups and provide water, electrolyte drink (Tailwind), salty and sweet snacks, and fruit.
Bringing a personal cup or soft flask is recommended.
Drop bags are allowed at the start/finish area, provided they are in waterproof bags.
Part of the race proceeds is donated to open-space conservation in the Castle Rock area and partner organizations.
Times are local to Castle Rock. Check the latest official information before the race.
STAY A LITTLE
From a hotel that makes race morning easy,
to the meals and views you'll enjoy with the medal on.
Hotel · 4.5km
View on Booking.com$82
View on GetYourGuideHotel · 4.6km
View on Booking.com$83
View on GetYourGuideHotel · 4.5km
View on Booking.com$82
View on GetYourGuideHotel · 4.4km
View on Booking.comDistances are straight-line from the start/finish area.
Check real travel times and booking terms with each hotel.
Hotel · 4.5km
View on Booking.comHotel · 4.6km
View on Booking.comHotel · 4.5km
View on Booking.comHotel · 4.4km
View on Booking.comAccommodation · 2.5km
View on Booking.comAccommodation · 761m
View on Booking.comAccommodation · 2.2km
View on Booking.comSwipe sideways to see more hotels.
Rest a little, wander a little.
Pick what suits you and whoever you're with.
$82
View on GetYourGuide$83
View on GetYourGuide$82
View on GetYourGuide$77
View on Klook$56
View on Klook$158
View on GetYourGuide$104
View on GetYourGuide$143
View on GetYourGuide$51
View on GetYourGuide$51
View on GetYourGuide$26
View on Klook$285
View on GetYourGuide$496
View on Klook$29
View on Klook$151
View on KlookOnce saved, you can open this page without an internet connection
Be the first runner
Leave this room's first post
Not officially announced yet.
It's expected in August 2027;
the 2026 race was held on Sat, August 29, 2026.
Not announced yet. The 2026 race entry fee was about $55.
Ultra. (From the 2026 edition)
The race starts at 06:00. (From the 2026 edition)
Castle Rock, CO. (From the 2026 edition)
Philip S. Miller Park. (From the 2026 edition)