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Montana Elk Mule Deer Moose

Unit 101 (South Bitterroot Valley)

Montana Hunting Guide — Elk, Mule Deer, Moose

HD 101 encompasses the southern end of the Bitterroot Valley and lower Bitterroot River drainage in Ravalli County, extending toward the Lost Trail Pass area near the Montana-Idaho border. The unit features a mix of private valley-floor land and extensive Bitterroot National Forest terrain rising into the Bitterroot Mountains on the west and the Sapphire Mountains on the east. Elk densities are good given the substantial public-land corridor, and the unit receives moderate hunting pressure relative to more northern Bitterroot units.

Elk Hunting in Unit 101

HD 101 encompasses the southern end of the Bitterroot Valley and lower Bitterroot River drainage in Ravalli County, extending toward the Lost Trail Pass area near the Montana-Idaho border. The unit features a mix of private valley-floor land and extensive Bitterroot National Forest terrain rising into the Bitterroot Mountains on the west and the Sapphire Mountains on the east. Elk densities are good given the substantial public-land corridor, and the unit receives moderate hunting pressure relative to more northern Bitterroot units.

Where to Find Elk in HD 101

Elk in HD 101 use both the western Bitterroot Mountains and the eastern Sapphire Mountains seasonally. The Salmon River Mountains on the Idaho border create a significant high-country refuge that holds elk well into rifle season. Migration routes concentrate elk along the main Bitterroot River drainage and its tributaries as animals descend toward winter range.

High Country (September–October)

Early season elk concentrate in the high basins and alpine meadows of the Bitterroot Mountains above 7,000 feet. The drainages off US-93 south of Darby — including Tin Cup, Nez Perce Fork, and the East Fork Bitterroot — all support elk populations. North-facing timber drainages hold bulls in velvet and during the early rut.

Mid-Elevation Corridors (October–November)

As rifle season pressure builds, elk push deeper into the Bitterroot Wilderness and USFS roadless areas. Focus on the timbered ridges and parks between 5,000 and 7,500 feet — especially the drainages that run parallel to the main valley but are accessible only on foot or horseback. Elk funnel through these mid-elevation corridors when migrating between summer and winter range.

Late Season (November)

Late-season elk concentrate on south-facing slopes and valley benches near the main Bitterroot River and the East Fork drainage. Scout for elk in or near Block Management Area boundaries where agricultural land provides supplemental forage adjacent to public land timber.

How to Hunt Elk in HD 101

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Elk Success Rates

HD 101 elk success averages 15–20% for rifle hunters with the substantial variation driven by access effort — hunters who reach the interior roadless country significantly outperform road-hunters. Archery success runs 7–12%. The unit's southern location near Lost Trail Pass and the Idaho border provides a large wilderness refuge that maintains good elk numbers despite annual hunting pressure. Cow-elk harvest is an important management tool in this unit; check FWP harvest reports for trend data.

Elk Draw Odds

Draw odds data not available for this specific unit/species combination in our database.

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Like most southwest Montana elk units, HD 101 general cow-elk licenses are typically over-the-counter for Montana residents. Bull elk and non-resident license availability depend on current FWP regulations. Check whether antlerless-only or antlered restrictions are in place for the current season. Non-resident hunters must apply through the Big Game Combination License drawing — FWP drawing statistics at myfwp.mt.gov provide current odds and applicant counts for this unit.

Unit Logistics & Expectations

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Frequently Asked Questions

What drainages hold the most elk in HD 101?
The East Fork Bitterroot River drainage and the Nez Perce Fork are the primary elk corridors in HD 101. The deeper draws off these main drainages — accessible by foot or horseback — hold the best bull populations away from road pressure.
Can you pack horses into HD 101 for elk hunting?
Yes. The East Fork Bitterroot and several other trailheads in HD 101 provide horse-trailer parking and trailhead access into the Bitterroot National Forest and adjacent Selway-Bitterroot Wilderness. Pack-in camps dramatically expand the huntable area.
Are there mule deer or whitetail in HD 101?
Both species are present in HD 101. Whitetail deer dominate the valley-floor riparian corridors along the Bitterroot River. Mule deer are more common on the sage benches, rocky foothills, and open breaks flanking both sides of the valley.
When is the mule deer rut in HD 101?
Mule deer rut peaks in mid-to-late November in southwest Montana. Bucks become highly active and visible during this period, making the late rifle season an excellent time to target mature bucks.
Is HD 101 near Glacier National Park?
Yes — HD 101 borders Glacier NP on the east side along the Continental Divide. The hunting area is outside the park boundary in the Lewis and Clark National Forest and adjacent lands.
When is the best time to hunt moose in HD 101?
The September rut is the most productive window. Bulls are actively responding to calls and moving during daylight hours. Early October can also be excellent as bulls recover post-rut and begin concentrating near winter forage areas.

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Sources & Verification

Every fact on this page is tied to a primary source below. Last fact-checked 2026-04-18.

  1. Montana Big Game Regulations 2025-26 — Montana Fish, Wildlife & Parks · supports: HD 101 species list, Season dates, Permit structure, HD boundary description · accessed 2026-04-18
  2. FWP Hunt Planner — Montana Fish, Wildlife & Parks · supports: HD 101 boundary geometry, Public-land layers, Block Management Areas · accessed 2026-04-18
  3. FWP Harvest Reports — Montana Fish, Wildlife & Parks · supports: Per-HD harvest totals, Hunter success rates · accessed 2026-04-18
  4. FWP Drawing Statistics — Montana Fish, Wildlife & Parks · supports: Historical draw odds, Applicant counts · accessed 2026-04-18
  5. FWP Moose Regulations — Montana Fish, Wildlife & Parks · supports: Moose season structure, Once-in-lifetime rules, HD 101 quota · accessed 2026-04-18
  6. Lewis and Clark National Forest — USDA Forest Service · supports: Rocky Mountain Front access, Two Medicine drainage, Public land boundaries · accessed 2026-04-18