A summer road trip in the Rockies should include time in southern Idaho, where a half-dozen ski and snowboard mountains flip to summer.

There's no shortage of strenuous biking and hiking, relaxing strolls through the wildflowers, music performances and more around the base areas of South Idaho's mountain resorts -- from Idaho Falls to McCall to Boise.

Bogus Basin continues its summer renaissance. It's home to Idaho's only mountain coaster, with 4,330 feet of twists and turns at up to 25mph. The Boise home hill's Basin Gravity Park debuts a one-mile beginner X-C trail, an extension of the Around the Mountain route, and a technical downhiller.

Tamarack takes advantage of its lakeside location by building a watercraft fleet over the last couple of summers. This summer, new jet skies and surf boats joins with paddleboards, kayaks and pontoon boats on Lake Cascade. On the hill, the 27-mile MTB park expands with a couple of intermediate flow trails, and a summit loop.

Kelly Canyon has begun lift-served MTB action to deliver riders to an 18-mile network of trails, plus a 4-mile special loop that will be a training ground for interscholastic riders. New at Kelly, just outside of Idaho Falls, will be UTV side-by-side rentals.

Brundage has built a 20-year reputation of solid hiking and biking trails on the mountain near McCall. The mountain added six new trails for this summer, including a dramatic uphiller into Lakeview Bowl. A scenic chairlift ride unveils a 360-degree view of Payette National Forest and environs.

As usual, Sun Valley offers up a plethora of summer activities and events for summer visitors. Downhill MTBers can ride the gondola to the ridge atop Bald Mountain while, down below, the resort links with a 30-mile cruiser system of paved, non-vehicle riding. Events highlight with performances on the famous ice rink at the resort above McCall.

Neither Soldier Mountain, Pomerelle nor Pebble Creek spin chairlifts during the summer. So at Soldier outside Boise and Pomerelle near Twin Falls, uphill MTBers take the lead to climb the mountain on their own. Just south of Pocatello, Pebble Creek will be open for special events and private affairs only.

All of Idaho's five Indy Pass destinations are a bit out of the way, but that's a good thing for short lines, long views, and uncrowded trails.

With two Idaho resorts just added to Indy Pass -- Soldier Mountain and Pomerelle -- it makes sense to hit the road for a circumnavigation of the Gem State's off-the-beaten-track, unpretentious mountains that honor the Indy Pass.

If you're heading up into the mountains, grab your hiking boots and mountain bike.

As the 2019-2020 season opens in Idaho, skiers and snowboarders who venture into the northern tier of the Rockies will find lots of new lifts, terrain and facilities to explore.

Excitement for this snowy March continues at Okemo. (Okemo/Facebook)

How about this start to March? We’ve already had two nor’easters to kick off the month and another may be around the corner.

Snow storms both big and small have been rolling into the mountains of Idaho since Thanksgiving, giving skiers and snowboarders what they want for the holidays and beyond – and erasing memories of a couple of lean years on the slopes.

Ski and snowboard resorts all over Idaho have lifted the ropes on the 2015-2016 season as timely snow and low temps have produced solid bases at most of the state’s 17 mountains.