T-33, North Basin  
Maps/GPS:                    
USGS 7.5' Map: Allenspark
Statistics:
Difficulty: Number: Miles: Altitude: Obstacles: Time:
Moderate 6 FR203 1.10 8,840 to 9,400 ft. Rock - 3 1-3 hours
County: Boulder
Adopted by:      
Managed by: Arapaho/Roosevelt National Forest,
Boulder Ranger District
2140 Yarmouth St.
Boulder, CO 80301
(303)444-6600
Summary: T-33 Crash Site, aka North Basin, is a short road with multiple rock challenges.
Attractions: T-33 Crash Site, Challenge
Seasonal
Closure:
Agency - December 1 to May 14
Best Time: June - Good, snow should be gone.
July - Best
August - Best
September - Best
October - May get early snow.
Trail Heads
Accessed:
 
Camping: There are some dispersed camp sites along the Bunce School Road. The T-33 road does not have any camp sites.
Base Camp: This would be a good area to base camp to explore other 4WD roads in the area like Bunce School Road, FR105, Middle St. Vrain, FR114, Ironclads, FR216, Rock Creek, FR116.2, and Taylor Mountain, FR330.
Fall Colors: Average - There are some aspen groves in the area.
Navigation: From Allenspark, CO. head east on S CO-7 E/CO-7 Scenic E for 4.3 miles. Turn right onto CO-72 E and go 4.1 miles. Turn right onto Middle Saint Vrain Road and go 0.4 miles passing through the Peaceful Valley Campground. Turn right onto Forest Road 105 and go 0.9 miles. Turn left onto Forest Road 202 and go 0.2 miles. Turn right onto the T-33 Crash Site 4WD road, Forest Road 203.

From Lyons, CO. head west on CO-7 W/5th Ave for 14.2 miles. Turn left onto CO-72 E and go 4.1 miles. Turn right onto Middle Saint Vrain Road and go 0.4 miles passing through the Peaceful Valley Campground. Turn right onto Forest Road 105 and go 0.9 miles. Turn left onto Forest Road 202 and go 0.2 miles. Turn right onto the T-33 Crash Site 4WD road, Forest Road 203.

From Nederland, CO. head west on W 2nd Street and go 0.3 miles. Continue to follow CO-72 W for 17.3 miles. Turn left onto Middle Saint Vrain Road and go 0.4 miles passing through the Peaceful Valley Campground. Turn right onto Forest Road 105 and go 0.9 miles. Turn left onto Forest Road 202 and go 0.2 miles. Turn right onto the T-33 Crash Site 4WD road, Forest Road 203.
History:
Sign

photo by:
Adam M

Description:
The North Basin 4WD road, or better known as the T-33 Crash Site road, leaves the main Bunce School Road, FR105, not far from Peaceful Valley Campground. First you will head north on FR202 for a short distance, then turn onto FR203, the T-33 road. The road heads northeast through the forest passing a few small open areas.
Start of T-33 road

photo by:
Adam M

It isn't long before you come to an area with three routes through the trees. This is the first obstacle. Each of the routes has a different challenge level.
Lower obstacle (2022)

photo by:
Adam M

Lower obstacle (2022)

photo by:
Adam M

Beyond this spot the road becomes a bit narrower. Next you will come to a rock step and then a large rock outcropping with a 'V' notch to the left side. This is the main obstacle.


Main obstacle, lower (2009)

photo by:
Adam M

Main obstacle, step (2009)

photo by:
Adam M

Main obstacle (2022)

photo by:
Adam M

Main obstacle (2022)

photo by:
Adam M

Main obstacle (2022)

photo by:
Adam M

Brian M on main obstacle (2022)

photo by:
Adam M

After climbing to the top of the obstacle the road heads back into the trees. The road stays a bit rough and will come to a long straight section with an upper and lower part.
Road beyond main obstacle

photo by:
Adam M

The top will narrow and you will have to navigate a rock to get to the lower section and continue. Just at this wide area you can turn and drop down to the lower section. Beware of the trees on the passenger side.

After this obstacle the road continues in the trees and comes to a right turn. The left dead ends. After turning right you will work through some narrow sections of trees and tree roots to another wide spot.
Through the trees

photo by:
Adam M

Road beyond main obstacle

photo by:
Adam M

Continue through this spot on the narrow and tree lined road a short distance to the parking area and turn around. There is an interpretive sign at this parking area.
Crash debris

photo by:
Adam M

Crash debris

photo by:
Adam M

Crash debris

photo by:
Adam M

Data updated August 17, 2022       4WD Road driven July 31, 2022       Copyright 4X4Explore.com - 2000-2022