Is crew access allowed on the 100 Miler course?

Yes, crew access is allowed on the 100 Miler course. Parking at aid stations must be out of traffic and must not block roads or driveways. Handlers must follow directions of aid station personnel. Space at trailheads may be limited on race day. Pets must be leashed at all times and should never be on the course.

Are drop bags allowed on the 100 Miler course?

Yes, drop bags are allowed on the 100 Miler course. Drop bags may be left at packet pickup for delivery to the aid stations that you specify. Supplies must be in a durable bag, clearly marked with the runner's bib number and the station to which it is to be delivered. Drop bags will be returned to the finish line as aid stations close throughout the day on Saturday, with all drop bags returned by 8:00 PM.

Are pacers allowed on the 100 Miler course?

Yes, pacers are allowed on the 100 Miler course. A pacer may join starting at mile 52.5. Pacers may accompany their runner from the Silver City aid station, or at any manned aid station beyond that point, to the finish. Any runner over 60 years old may have a pacer for the whole distance. Pacers may meet their runner only at crew access aid stations. Pacers should wear a PACER bib, available at packet pickup. A runner may have only one pacer at a time.

What is the cutoff time for the 100 Miler course?

The overall time limit for the 100 Miler course is 34 hours from the start.

Ultras · US · SD

Black Hills 100

100 Miler · 100 Mile

Registration open

Registration is open.

Race dateJune 25-26, 2027

Duration2 days

Start10:00am

Whenin 244 days

Who's going to Black Hills 100?

I'm running itPlan your weeks and your aid station times I'm crewingWhen to leave, where to park, at every stop I'm pacing or cheeringAsk your runner for their Out Here link

Free. You can start with nothing.

Official website Entry Aid stations Crew access Notify me if this race changes

Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.

Distance From the name

100 Mile The race calls this course “100 Miler” and hasn't published a measured distance. Trail courses often run long.

Climb The race

16,779 ft

Descent The race

16,779 ft

High point The race

5,443 ft

Time limit The race

34:00:00

Aid stations

Started

not checked yet

Finished

not checked yet

Finish rate

not checked yet

The course

Where it goes out and back · 17 aid stations · rust marks a stop your crew can reach

Out and back on the Centennial Trail from Sturgis City Park to Silver City and back, finishing at Sturgis City Park. The last miles before the turnaround follow the Deerfield Trail. Runners must check in at City Park between 9:00 and 9:50 AM on race day.

Constant ups and downs, with dirt, rocks, single-track, double-track ATV trail and as little pavement as possible.

The race

What this one is

The Black Hills 100 is run on the Centennial Trail (Trail #89) in the northern Black Hills of South Dakota, starting and finishing in Sturgis. It offers a 100 mile out and back, and a 50 mile, 50K and 30K that run point to point into Sturgis City Park. The trail is mostly singletrack, with rock, ATV double-track and as little pavement as possible, and the hills are relentless rather than high.

The Black Hills 100 was created and is directed by local trail and ultra runners who wanted to show off their favorite trail to the rest of the world. Since 2018 a runner who finishes all four distances (30K, 50K, 50M and 100M) earns the Man or Woman in Black buffalo skull.

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery: not checked yet

Lottery opens: not checked yet

Lottery draw: not checked yet

Field cap: not checked yet

Registration: UltraSignup blackhills100.com

Qualifying: not checked yet

Minimum age: not checked yet

Transfers: not checked yet

Deferrals: not checked yet

Running, crewing, pacing or still deciding

How NavRun helps with Black Hills 100 Thirty four hours, and six stations with a clock on each.

You are running it

You reach Pilot Knob, mile 60, before its 6:00am cutoff, and you already knew that this morning.

An arrival time for all 11 stations, worked out from your own training.

Start free →

You are crewing it

You park at Alkali Creek, and you are standing there when they come in.

One link from your runner, with the stop and the window they arrive in.

You are pacing

You are at Pilot Knob, mile 60, warm and fed, and you know you have 40 miles ahead of you.

The same sheet says when they reach you.

You are deciding

You find out Black Hills 100 is months of work away, not years, and you enter.

Put in a race you have already run. NavRun shows you where this one sits from where you are.

No account needed →

Crew access, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed: Yes blackhills100.com

Vehicles per runner: not checked yet

Pacers: Yes, from mile 52.50 blackhills100.com

Muling: Not allowed blackhills100.com

Drop bags: Yes blackhills100.com

Cupless: not checked yet

Course marking: not checked yet

Night running: not checked yet

Dogs: not checked yet

Headphones: not checked yet

Crew rules: Parking at aid stations must be out of traffic and must not block roads or driveways. Handlers must follow directions of aid station personnel. Space at trailheads may be limited on race day. Pets must be leashed at all times and should never be on the course. blackhills100.com

Pacer rules: Pacers may accompany their runner from the Silver City aid station, or at any manned aid station beyond that point, to the finish. Any runner over 60 years old may have a pacer for the whole distance. Pacers may meet their runner only at crew access aid stations. Pacers should wear a PACER bib, available at packet pickup. A runner may have only one pacer at a time. blackhills100.com

Drop bag rules: Drop bags may be left at packet pickup for delivery to the aid stations that you specify. Supplies must be in a durable bag, clearly marked with the runner's bib number and the station to which it is to be delivered. Drop bags will be returned to the finish line as aid stations close throughout the day on Saturday, with all drop bags returned by 8:00 PM. blackhills100.com

Cutoff philosophy: not checked yet

Aid stations

Every stop, and what you get there ● yes ○ no ? nobody has checked – does not apply to this race

Mile	Station	Cutoff	Crew access	Bag	Pacer	Med	To next
0.00	Sturgis City Park NoneSignal wrong?	?	?	?	?	?	7.00
7.00	Alkali Creek NoneSignal wrong?	?	●	?	?	?	4.50
11.50	Bulldog NoneSignal wrong?	?	○	?	?	?	?
?	Elk Creek NoneSignal wrong?	?	●	●	?	?	?
24.00	Crooked Tree NoneSignal wrong?	?	○	?	?	?	?
?	Dalton Lake NoneSignal wrong?	?	●	●	?	?	?
39.00	Nemo/Boxelder Creek NoneSignal wrong?	?	●	?	?	?	6.00
45.00	Pilot Knob NoneSignal wrong?	?	●	?	?	?	?
?	Silver City NoneSignal wrong?	3:30am	●	●	●	?	?
60.00	Pilot Knob NoneSignal wrong?	6:00am	●	?	●	?	6.00
66.00	Nemo/Boxelder Creek NoneSignal wrong?	7:45am	●	?	●	?	8.00
74.00	Dalton Lake NoneSignal wrong?	10:30am	●	●	●	?	7.00
81.00	Crooked Tree NoneSignal wrong?	12:30pm	○	?	○	?	?
?	Elk Creek NoneSignal wrong?	2:30pm	●	●	●	?	?
93.50	Bulldog NoneSignal wrong?	4:30pm	○	?	○	?	4.50
98.00	Alkali Creek NoneSignal wrong?	6:30pm	●	?	●	?	?
?	Sturgis City Park NoneSignal wrong?	8:00pm	?	?	?	?	?

Driving your crew

Getting your people there 6 stops with directions the race published.

Alkali Creek mile 7.00

From Woodle Field, return to Lazelle Street. Go right, and proceed to the first stop light at the intersection of Lazelle St. and Junction Ave. Go left, and proceed south 2 miles on Junction Ave to Interstate 90, exit 32. Take a left and head East on I-90 two miles to exit 34 (Black Hills National Cemetery). Take the off ramp at exit 34, go left, and proceed under the I-90 overpass. Take a left and follow the BLM RD 1/2 mile to the Alkali Creek TH/Aid Station. Driving distance from Woodle Field: 5 miles.

docs.google.com

Elk Creek

From Alkali Creek, return to I-90 exit 34. Go right, and head west 2 miles on I-90 to exit 32. Take the off ramp at exit 32. Merge into the left lane, and take a left at the stop sign. Drive under I-90, and proceed south on Vanocker Canyon Rd 6.9 miles to the turnoff for the Elk Creek TH. Take a left on Runkle RD, and proceed 2.4 miles to the Elk Creek TH. Driving distance from Alkali Creek TH: 12.3 miles.

docs.google.com

Dalton Lake

From Elk Creek, return to Vanocker Canyon Rd. Take a left on Vanocker, and proceed 6.5 miles to the turnoff for the Dalton Lake TH. Take a left on Dalton Lake RD, and proceed 4 miles to the Dalton Lake TH/Campground. Driving distance from Elk Creek TH: 12.9 miles.

docs.google.com

Nemo/Boxelder Creek mile 39.00

From Dalton Lake, return to Vanocker Canyon Rd. Take a left on Vanocker Canyon Rd., and proceed 3.5 miles to the intersection of Nemo Rd. and Vanocker Rd. At the stop sign, go left on Nemo Rd. and proceed 1/2 mile to town of Nemo and take a right on Boxelder Forks Rd. Proceed .7 tenths of a mile and the aid station is on your left at the South Boxelder Trailhead. Driving distance from Dalton Lake TH: 8.7 miles.

docs.google.com

Pilot Knob mile 45.00

From South Boxelder Trailhead return to Nemo Rd. and take a right. Proceed 1.7 miles to Merritt Estes Rd (County Rd 208). Take a right on Merritt Estes Rd (County Rd 208) and proceed 4.4 miles to Pilot Knob TH. Driving distance from South Boxelder Creek TH: 7.5 miles.

docs.google.com

Silver City cutoff 3:30am

From Pilot Knob TH, take a right on Merritt Estes Rd., and proceed 1 mile to the intersection of Highway 385. Take a left on Highway 385 and proceed 2.8 miles. Be on the lookout for the Silver City Road and signs for the Deer Creek TH on your right. Take a right on Silver City Rd. and follow it 4.5 miles until you reach Silver City. The Silver City Community Hall is on the right hand side, just before you get to the town. Driving distance from Pilot Knob TH: 8 miles.

docs.google.com

Same race, other lines

Other distances and other years

Other distances: 50 Miler (50 Mile)
30K
50K

What it looks like out there

Somebody has been out there with a camera the tables say the climb is long. these say what long feels like.

One person has been out there with a camera or a microphone.

Social account

Black Hills 100 on Facebook

Social account

These are other people's work and we link straight to them. Watching costs nothing and needs no account. More of them: every race we hold, on film.

Add to this page

What you know every one of these is read by a person before it changes anything

Ran this race? Tell the next runner what you know.

Nobody sees it until we have read it. No account, no sign-in.

Which distance? Leave blank if it applies to the whole race.

Which stop? Leave blank if it is not about one particular stop.

Give it a short title: Optional. Something like “Cal Street, mile 62 to 78”.

What do you wish someone had told you? Write it the way you would say it to someone at the start line.

Were you there? Optional, and it decides nothing. It only tells the next runner where this is coming from.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this note.

Website: Leave this field blank.

See something wrong or out of date? Suggest an edit.

This changes nothing on the page on its own. Somebody checks it against the race first.

Which detail? Optional. Filled in for you when you start from a specific line on the page.

What does the page say now? Copy it as it appears, so we can find it.

What should it say? The corrected value.

How do you know? Required. Where it came from: the race email, the runner manual, what you saw on the day.

A link that shows it: Optional.

Or a photo of it: Optional. A screenshot or a photo of the sign works.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, only so we can come back to you about this correction.

Which distance? Leave blank if it is about the whole race.

Which stop? Leave blank if it is not about one particular stop.

Website: Leave this field blank.

Seen a course preview or a film of this one? Send it over.

Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.

What does it show that the page cannot? Required. A line is plenty. Where the climbs are, what the footing does, what the last twenty miles look like.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this one.

Where is it? A YouTube link, a race report, a photo gallery, whatever it is.

What kind of thing is it?

Who made it? Optional, and we credit them on the page.

Website: Leave this field blank.

Have the GPX? Send us the link.

We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.

Are you the race director? Get in touch and we'll make it right.

We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.

Where this came from. Every fact on this page records its source and when we last checked it: 112 sources for this race. Hover a source link to read the sentence it came from.

39% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.

See something wrong or out of date? Suggest an edit
Ran this race? Tell the next runner what you know
Were you out there? Say which stops a text got out from
Got footage of this course? Send us the link
Are you the race director? Get in touch and we'll make it right.
Anything else: [email protected]

Ultras change. We will tell you when this one does.

Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.

No account, and nothing to cancel.

What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.

I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.