Skip to main content
Flagstaff Trail to Halfway House Trail (Boulder Star) route map
Difficulty: ModerateOut and Back

Flagstaff Trail to Halfway House Trail (Boulder Star)

Boulder, Colorado

1.5 mi

Distance

705 ft

Elev. Gain

45m

Est. Time

Out & Back

Route Type

Moderate

Difficulty

About This Trail

Flagstaff Trail to Halfway House Trail (Boulder Star) is an out-and-back trail in Boulder County, Colorado. It is 1.5 miles long and gains 705 feet. It is in or next to Boulder, Colorado.

From the trail data on this page.

Trail Conditions

Trail Conditions

Unknown

We have no current condition data for this trail. Check with the operator before you go, and submit a report below if you've been recently.

No recent condition reports. Be the first to share what you see on the trail.

Elevation Profile

Min:1,758 ft
Max:1,884 ft
Gain:215 ft
Loss:215 ft
Elevation profileA line rising and falling between 1,758 ft and 1,884 ft across 1.5 mi along the route, drawn from start to end.1,758 ft1,800 ft1,842 ft1,884 ft0.0 mi0.4 mi0.8 mi1.2 mi1.5 mi

Elevation at the labelled points along this route
PointDistance from startElevation
Start0.0 mi1,758 ft
High point1.1 mi1,884 ft
End1.5 mi1,758 ft

Trail Details

Route Type
Out & Back

Official sources & verification

Verify before you go

Where it is

Nearest town:
Boulder, CO · in or next to town
County:
Boulder County, CO

Nearest town and county from U.S. Census Bureau place records and county boundaries.

We display cached information from agency feeds. Hours, fees, permits, closures, fire restrictions, and conditions change without notice. Outdoors is not the permitting authority. Confirm current conditions for this trail using the links above before you go — you are responsible for compliance. Last verified by us: May 23, 2026. Our copy is more than a month old — please reconfirm with the agency before relying on it.Spot an error in our data?

Reviews

No reviews yet

Be the first to share your experience and help others plan their visit.

Legacy import — verify before navigating

Path geometry came from our pre-launch legacy database. Routes have not yet been re-verified against the operator and may differ from the actual trail.

Spot an error in our data on Flagstaff Trail to Halfway House Trail (Boulder Star)?