Steep CO trails

I know this isn't really the right place, but other forums aren't the best.  Does anyone know of any trails in Colorado that are fairly steep, and have little to no switchbacks?  Basically just trails that go straight up a mountain.  

The Manitou Incline (which is currently closed).

what's your take on steep? you looking for front country stuff? if so, a lot of people consider mt. morrison pretty aggressive... if not, there are a lot of high country scrambles available once the snow melts...

Anywhere really.  I am training for a race in Alaska that pretty much goes straight up a mountain.  Steep as in if its wet or muddy, you would have a difficult time getting up.

The Incline is 2,000ft in less than a mile. I don't think any trail is steeper as it would just errode, unless you're bushwhacking straight up a slope.

Mt. Garfield in GJ is alternating very steep and flat. 2000 ft in 2 miles with almost no switchbacks 

The Trail of the Ancients at Devils Head. Precursor trail to the lookout before they built the highway version.
The old original North Table Mountain approach was a straight up line along the fence on the west side.
The trail to Crater Lakes from the East Portal Moffat Tunnel is steep, just a couple switchbacks.

Come to think of it, this is an odd request  

When is this race? Most trail races across the country are cancelled or having permits pulled.

Peter Beal wrote: When is this race? Most trail races across the country are cancelled or having permits pulled.

July 4th

Mt. Powell in the Gore Range
Airplane Gully to Navajo Peak
Iron Gates to Mt. Meeker
Red Gully on Crestone
Thatchtop

Thanks everyone!

Any steep snow line. Just bring crampons. Mount Morrison has some switchbacks but is still one of the steepest trails I know in the front range. You could also go off trail on it and go straight up the east face. 

Freeway on the Second Flatiron

Bear Peak via Shadow Canyon gains almost 2k in 1.25 miles or so. The section of steep gain is pretty straight, not a lot of switchbacks.

Shadow Canyon is a great recommendation from Nick but I doubt that race is going to happen. Big trail races are falling left and right. 

I'll be surprised if the Mount Marathon race continues as planned.  And if I were training for it I would look for cross-country (aka off-trail) routes.

Mount Morrison is quite steep!
https://www.hikingproject.com/trail/7027384/mount-morrison

Long Ranger wrote: Freeway on the Second Flatiron

A few advantages to this is, if you have a good imagination, you can think that you're doing the rockclimbing thing, it's a large face, so avoiding people is easy, and you won't add to the problem of erosion.

Long Ranger wrote:

A few advantages to this is, if you have a good imagination, you can think that you're doing the rockclimbing thing, it's a large face, so avoiding people is easy, and you won't add to the problem of erosion.

And if you are just a little bit not careful and start falling down it, you'll suddenly realize that you were doing the rockclimbing thing but now it's too late to fix things.

Peter Beal wrote:

And if you are just a little bit not careful and start falling down it, you'll suddenly realize that you were doing the rockclimbing thing but now it's too late to fix things.

Despite what some may claim, Freeway is Class 4, not 5.13.