Hiking and Mountaineering
IMR groups hiking, peak bagging and mountaineering trips together. We use several criteria in our trip descriptions to classify our various types of trips, focusing on round-trip mileage and total elevation gain. No classification system is perfect, and trip difficulties can vary greatly depending on the season and other factors. If after reading the trip description you have any questions about a trip's difficulty, contact the trip leader.
Hiking trips (including some trips that require rock-climbing skills) are normally classified as A through D, with “A” being the easiest and “D” being most difficult.
Hiking and Mountaineering Trip Classifications
- Class A: Up to 8 miles round trip and 1200 ft. elevation gain. Prior hiking experience is usually not necessary; some level of physical fitness is helpful.
- Class B: Up to 8-12 miles round trip and/or up to 2500 ft. elevation gain. Moderate to strenuous physical activity. Some prior experience is beneficial.
- Class C: Up to 15 miles round trip and 3500 ft. elevation gain. This is Strenuous to very strenuous physical activity. Prior experience and training is beneficial very, very helpful.
- Class D: Hikes up to or over 15 miles round trip and/or greater than 3500 ft. elevation gain. These require very strenuous physical activity often including exposure or requiring use of technical skills. Knowledge based on prior experience and training is highly beneficial.
Additional Hike Information
If you also see the letter "E" after the classification (such as C-E or D-E), the trip involves exposure (i.e., risk of falling) and may require advanced climbing skills. If you have fear of heights or are unsure of your ability to handle exposure, you may wish to go on a different activity, or consult with the Trip Leader to get input from them.
Within each of the above letter classifications, hikes may also be described subjectively as Easy, Moderate, and Difficult in comparison to other trips of the same classification. Thus, a Difficult B hike is harder than an Easy B hike, but easier than a Moderate C hike.
“Exploratory” in the trip description simply means the leader has researched the route, but has not been there before. Participants should expect potential route-finding and not a clearcut/known trip.
The following shorthand descriptions may also be used to describe the difficulty of the terrain on a hike:
- On Trail: The trip is mainly on improved trail in reasonable condition. Any portion of the trip not on trail is easy "like trail" conditions.
- Off Trail: Below timberline (about 11,000 in Idaho), the trip may involve bushwhacking or travel through forested terrain. Above timberline, the trip may cross open tundra or involve
- Class 2 hiking under the Yosemite Decimal System: i.e., moving on or around small boulders where the use of hands may be used, but only to maintain balance. No special hiking or climbing skills are required. Exposure is usually minimal or nonexistent.
- Scrambling: The trip involves Class 3 climbing: i.e., climbing that is relatively easy with plentiful handholds. Although a rope is rarely required, Class 3 climbing may be intimidating for less experienced mountaineers. Always consider bringing and wearing a climbing helmet to ensure your own safety. A fall on a Class 3 route usually results in a minor injury, but can on occasion result in serious injury or death.
- Semi-technical: The trip involves Class 4 climbing: i.e., within the realm of technical rock climbing, but with relatively plentiful handholds. Some people will desire a rope, but usually just for protection on the descent. Participants must wear climbing helmets. A fall without the protection of a rope on a Class 4 route usually results in serious injury or death.
Hiking and Mountaineering Trips
Kepros: April 13, 2019
Ten miles round trip. 1700 ft elevation gain mostly due to lots of up and downs along a ridgeline with beautiful views of the Trinity Mountains. One of Tom Lopez’ four “Grand Slam” hikes. (https://www.idahoaclimbingguide.com/grand-slam-peaks/) Moderate to difficult hike.
Ladakh (“The Land of High Places”) sits at the crossroads of Tibet, India, and Pakistan. It is a place rich in history, culture, and it offers the amateur mountaineer a number of accessible Himalayan peaks. Join IMR member Scott Arnold as he shares with you his experience of climbing one of those peaks, Stok Kangri. In his presentation you will enjoy a glimpse into the culture and history of the region along with some useful tips towards planning your first 6,000 meter climb.
Join IMR for an overview of basic glacier and snowfield travel skills tentatively scheduled for Saturday, 20 April 2019 and run from 8:30am to noon (this date may change depending upon Bogus Basin's closing weekend schedule). Participants will have the opportunity to practice ice axe self-arrest, glacier travel on crampons, and rig a Z pulley system for a simulated crevasse rescue. We will also try our hands at a few key knots useful in climbing. This workshop is open to both the novice and to those looking to refresh their glacier travel skills.
Join Friends of the Owyhees for the 4th Edition of Succor Creek Geology
About The Trip
This trip we will be guided by Sammy Castonguay, geologist and owner of ThisMagickalEarth.com. Other local geologists may also accompany us. We will focus on basic rock identification and landscape observations to interpret the geologic history. Some rock hammers and hand-lenses will be available, but you may also bring your own.
Join us for a moderately long day hike of about 12+ miles on the Foothills Shingle Creek to Dry Creek Loop. Hiking time expected to be about 6-7 hours. The ground might be frozen at the higher elevations. Contact Carl if interested and for the meeting location.
Join us in exploring YDS Class 3E summits in the rugged and beautiful Seven Devils Peaks. On Sunday we will drive about 4.5 hours from Boise and carcamp on the way to the trailhead (accessible to passenger cars on a good gravel road). Monday we will backpack, partly off-trail, to a lake basin and set up base camp. That same day, we will scramble up the first of the peaks on our list. Tuesday, we hike off trail and scramble up a couple more peaks. Wednesday morning, one more short scramble is on the agenda before packing up, backpacking out, and returning to Boise.
Join us in exploring a less-frequently traveled area of the picturesque Wallowa Mountains in eastern Oregon. We'll leave Boise early on Friday morning for the approximately 3.5 hour drive to the trailhead (the last four miles are rough but should be accessible to higher clearance passenger cars; NW Forest Pass or equivalent required). We'll backpack to a lakeside campsite. Saturday and Sunday we'll hike cross-country to peaks just shy of 9,000 feet in elevation with probably some YDS Class III scrambling. Monday we hike out and return to Boise. No dogs, please.
Join us in exploring summits above 10,000 feet in elevation in the highest mountain range of Idaho. We will leave Boise on Sunday afternoon and drive about 5 hours to a primitive campsite. Monday, Tuesday and Wednesday we head towards summits, re-locating to different primitive campsites on Monday and Tuesday evenings.. We return to Boise on Wednesday evening. Routes are YDS 2 - 3 and strenuous because of significant elevation gain over rough terrain. Roads are accessible to high clearance 4WD vehicles. No dogs, please.
This year's Boise Front 4th of July Butterfly Count will be held on Sunday, July 8th. Weather permitting it will be an all-day affair. We'd love to have you join us.
We will meet in the parking lot of the 17th and State Marketplace on the corner of – you guessed it – 17th and State Street (across the street from the Albertsons parking lot at 16th and State).