Good Sam Club Open Roads Forum: Lewiston to Lolo pass highway 12 road questions
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 > Lewiston to Lolo pass highway 12 road questions

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Bken72

Oregon

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Posted: 04/10/20 01:32pm Link  |  Quote  |  Print  |  Notify Moderator

Hi all, we are planning to travel on highway 12 through Idaho on our way from Oregon to Montana. We are in a 1 ton Silverado gas motor hauling a 33 ft crossroads travel trailer, which is pushing the boundaries of what the truck should be hauling. We are looking for info regarding concerns we should have on any of the downhill sections and whether anyone has had any major issues such smoking the brakes. Any input as to whether this is a stupid thing to attempt, or if anyone has made the trip and has suggestions etc. is much appreciated.

agesilaus

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Posted: 04/10/20 01:56pm Link  |  Quote  |  Print  |  Notify Moderator

Know how to downshift. We went up that way and it's a fantastic scenic route. It follows the river for much of it and kayakers and bicyclists are all around. At least during normal times. We had no problems with the truck and while there are grades I don't recall any extreme climbs or drops. IIRC the road climbs steadily for the whole first section.


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Bken72

Oregon

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Posted: 04/10/20 02:02pm Link  |  Quote  |  Print  |  Notify Moderator

Agesilaus, thank you for your reply

Old-Biscuit

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Posted: 04/10/20 02:38pm Link  |  Quote  |  Print  |  Notify Moderator

Downshift BEFORE you start gaining SPEED

Use brakes sparely
STAB them and quickly scrub off speed (reduce by 10 mph) then GET OFF THE BRAKES

Repeat as needed to maintain downhill speed


Uphill.....grear down and use higher RPM
Stay in right lane and don't expect ahny spped records


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Two Hands

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Posted: 04/10/20 02:47pm Link  |  Quote  |  Print  |  Notify Moderator

Take a look a the Mountain Directory - West. It will give you information about steep grades and curves for your route.

wguss

So. California

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Posted: 04/10/20 03:18pm Link  |  Quote  |  Print  |  Notify Moderator

We've taken that route many times usually coming home from Yellowstone working our way back down through Oregon and back to So. Calif in our class A.

95% after you pass Lewiston is meandering road about 45 mph. The only steeper section is going up the Lolo Pass as you enter Montana but it is not bad at all. It is a very pleasant drive and we think well worth it. Toward the Montana end at the start of the pass is a campground called Powell. It has electricity and is on the river. If you time it right and want to camp there you'd hit no traffic going up the pass the next morning.

TUCQUALA

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Posted: 04/10/20 03:20pm Link  |  Quote  |  Print  |  Notify Moderator

Going west to east, you'll have an easier downhill after Lolo Pass than the other way. Using the lower gears and brakes cautiously, and not letting your speed get out of line, you'll be ok. The pull uphill on the west side (last 3 or so miles) is do'able, but you won't be setting any speed records!!! It is curvy (!!) here and there (!!), but a good beautiful 2 lane road. Depending on when you are going, and day of the week, be aware that the road is loved by motorcyclists and the spandex mafia!! Watch the curves for them at all times!!!


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MDKMDK

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Posted: 04/10/20 03:36pm Link  |  Quote  |  Print  |  Notify Moderator

Install Google Earth Pro, and do a "Get directions" from start to finish. When the route is displayed on the map/earth, right click it, and select "Show Elevation Profile". It will show the entire route's ups/downs with grade max and min slopes in either direction.


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Camper8251

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Posted: 04/10/20 04:05pm Link  |  Quote  |  Print  |  Notify Moderator

If this trip is in the near future.....

Sorry not to be a negative nelly but Do you plan on self quarantining for two weeks when you arrive here?

Montana is under a stay at home order and all travelers are required to self quarantine.......


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romore

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Posted: 04/10/20 05:37pm Link  |  Quote  |  Print  |  Notify Moderator

That is a beautiful trip, just don't push and you will be fine. When do you plan to go? It's a little early to attempt Lolol Pass with an rv.

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