Are e-bikes allowed in Helena-Lewis and Clark National Forest?

On National Forest System land, e-bikes are legally motor vehicles. Under U.S. Forest Service policy (36 CFR 212; FSM 7700), an e-bike of any class may be ridden only on routes that are designated for motor-vehicle use or specifically designated for e-bike use — not on every trail where a conventional (non-motorized) mountain bike is allowed. In Helena-Lewis and Clark National Forest, Class 1 access is recorded on 555 trail segments; Class 2 and 3 on 555 and 555 respectively.

Does an e-bike count as a mountain bike on Helena-Lewis and Clark National Forest trails?

No. Under USFS policy an e-bike of any class is a motor vehicle, even Class 1 pedal-assist. A trail being open to conventional bikes does not by itself permit e-bikes — the trail must carry an e-bike or motorized designation.

When are bikes open in Helena-Lewis and Clark National Forest?

Most bike-designated trails in Helena-Lewis and Clark National Forest carry a Year-round season window in the USFS data; higher-elevation trails open later as snow clears. Always confirm current conditions with the ranger district.

USFS travel-management data · Updated June 2026

E-Bikes on Helena-Lewis and Clark National Forest Trails

In Helena-Lewis and Clark National Forest, USFS travel-management data records Class 1 e-bike access on 555 trail segments (891 mi), Class 2 on 555, and Class 3 on 555. Conventional (non-motorized) mountain bikes are designated on 960 segments. On Forest Service land an e-bike is a motor vehicle, so it is allowed only where designated.

555

Class 1 segments

891 mi

555

Class 2 segments

555

Class 3 segments

960

Conventional bike segments

1,684 mi

E-bike access by class

Where a trail is open to conventional bikes, check the e-bike columns separately — a non-motorized mountain bike being allowed does not by itself mean an e-bike is.

E-bike access by class in Helena-Lewis and Clark National Forest, from USFS travel-management data
E-bike class	Definition	Trail segments with access	Miles
Class 1 designated	Pedal-assist only, motor cuts out at 20 mph, no throttle.	555	891 mi
Class 2 designated	Throttle-assist up to 20 mph (can propel without pedaling).	555	891 mi
Class 3 designated	Pedal-assist up to 28 mph, no throttle.	555	891 mi

Trail-by-trail (largest bike trails)

Conventional-bike and Class 1 e-bike status with season windows, per USFS designation.

Trail	Miles	Bike	Class 1 e-bike	Season
Mt High Jeep	13.58	Allowed	Allowed	Year-round
Summit Jeep	7.43	Allowed	Allowed	Jan–Oct, December
High Springs	6.44	Allowed	Allowed	Jul–Oct
High Roller	5.79	Allowed	Restricted	Year-round
Bluff Mtn Jeep	5.73	Allowed	Allowed	Year-round
Brooklyn Bridge	5.64	Allowed	Restricted	Year-round
Treasure Mt 1	4.98	Accepted but discouraged	Allowed	May–Aug
Whetstone Connector	4.96	Allowed	Allowed	Year-round
Jellison Haymaker Jeep	4.66	Allowed	Allowed	Year-round
Low Flow	4.56	Allowed	Restricted	Year-round
Cow Creek	3.84	Allowed	Restricted	Year-round
Jerusha Gulch	3.69	Accepted but discouraged	Allowed	May–Aug
Oti Creek/N. Fork Hoover	3.62	Allowed	Restricted	Year-round
N. Fork Deadman	3.5	Allowed	Allowed	Jul–Oct
Forest Lake	3.17	Allowed	Restricted	Year-round
Lower Russian Loop	2.74	Allowed	Allowed	Year-round
North Fork Highwood Creek	2.67	Allowed	Allowed	Jan–Aug, December
Baldy Ridge	2.55	Accepted but discouraged	Allowed	May–Oct
Little Camas Creek	2.49	Accepted but discouraged	Allowed	May–Oct
Belt Ridge Jeep	2.39	Allowed	Allowed	Year-round
Chamberlain-Pioneer Connector	2.14	Allowed	Allowed	Year-round
Roberts Creek Jeep	2.04	Allowed	Allowed	Year-round
Quartzite Ridge	2.01	Allowed	Allowed	Jan–Oct, December
Daisy Atv	1.92	Allowed	Allowed	Year-round
Rooster Bill	1.89	Allowed	Restricted	Year-round
Little Flow	1.87	Allowed	Restricted	Jan–Jun, Sep–Dec
Summit Campground Cutoff	1.79	Allowed	Restricted	Year-round
Oti Creek/N. Fork Hoover	1.68	Allowed	Allowed	Jan–Oct, December
Trail Mill Atv	1.65	Allowed	Allowed	Jan–Aug, December
Six Shooter Jeep	1.65	Allowed	Allowed	Year-round
East Hopley Jeep	1.61	Allowed	Allowed	Year-round
Dry Wolf Alternate	1.59	Accepted but discouraged	Allowed	Jan–Oct, December
Corral Creek	1.5	Allowed	Allowed	Jan–Aug, December
Negro Mt 3	1.5	Accepted but discouraged	Allowed	May–Aug
Lower Lake	1.48	Allowed	Allowed	Year-round
N Fk Hoover	1.43	Allowed	Restricted	Year-round
Spring Cr Connector	1.3	Allowed	Allowed	Year-round
Lazy Z Jeep	1.22	Allowed	Allowed	Jan–Aug, December
Deadwood Gulch T2	1.13	Accepted but discouraged	Allowed	Jun–Oct
Bergs Jeep	1.1	Allowed	Allowed	Year-round

Frequently asked questions

Are e-bikes allowed in Helena-Lewis and Clark National Forest?: On National Forest System land, e-bikes are legally motor vehicles. Under U.S. Forest Service policy (36 CFR 212; FSM 7700), an e-bike of any class may be ridden only on routes that are designated for motor-vehicle use or specifically designated for e-bike use — not on every trail where a conventional (non-motorized) mountain bike is allowed. In Helena-Lewis and Clark National Forest, Class 1 access is recorded on 555 trail segments; Class 2 and 3 on 555 and 555 respectively.
Does an e-bike count as a mountain bike on Helena-Lewis and Clark National Forest trails?: No. Under USFS policy an e-bike of any class is a motor vehicle, even Class 1 pedal-assist. A trail being open to conventional bikes does not by itself permit e-bikes — the trail must carry an e-bike or motorized designation.
When are bikes open in Helena-Lewis and Clark National Forest?: Most bike-designated trails in Helena-Lewis and Clark National Forest carry a Year-round season window in the USFS data; higher-elevation trails open later as snow clears. Always confirm current conditions with the ranger district.