Unit A388 (Tenmile-Prickly Pear Valley)

Montana Hunting Guide — Antelope

Unit A388 lies in Lewis and Clark and Jefferson counties. Montana FWP publishes no per-unit pronghorn success figure we can verify for this unit. Check land status on a current map before you plan a route.

View Draw Odds Montana Hunting Guide

Build your own PDF hunt guide for Unit A388

Answer a few questions about your tag, your season and your rig, and the Field Intelligence Report builds a print-ready Montana Unit A388 guide around your hunt: three ranked spots with morning, afternoon and evening plays, a day-by-day plan, topo maps with every pin numbered, a camp and access plan, the legal and retrieval rules for this unit, shot discipline, a meat-care and pack-out plan, and a pre-trip checklist. Every coordinate sits on land recorded as public.

Antelope guide

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Antelope Hunting in Unit A388

Where to Find Pronghorn in Unit A388

Montana FWP draws an exact line around unit A388 and says nothing about where the pronghorn stand inside it. The country below is verified; where to begin in it is our judgement, not the agency's. The unit lies in Lewis and Clark and Jefferson counties.

The lines of the unit: Hauser Lake, Canyon Ferry Dam and Jackson Creek

Montana FWP draws unit A388 in Lewis and Clark and Jefferson counties with a boundary that runs on Interstate 15, Route 284, US Highway 12 and Route 518, and on Hauser Lake, Canyon Ferry Dam, Jackson Creek and Holmes Gulch, walked corner by corner in its hunting district legal descriptions. Read it as a frame, not as a hint about animals. Its value is practical — those are the features you will navigate by, and the ridges that separate one day's country from another's.

High ground inside the line: Mount Helena, Mount Ascension and Scratchgravel Hills

Named high points inside the unit include Mount Helena at 5,450 feet, Mount Ascension at 5,274 feet, Scratchgravel Hills at 5,248 feet and French Bar Mountain at 4,589 feet. Several carry a public-land flag in our data, which makes them the first places to try for a view. Pronghorn live in the open and trust their eyes, which is the whole problem.

Holding ground: Sawmill Gulch, Trust-to-Luck Gulch and Last Chance Gulch

Below them sit Sawmill Gulch at 4,161 feet, Trust-to-Luck Gulch at 4,159 feet, Last Chance Gulch at 4,122 feet, Iowa Gulch at 4,023 feet and Butcherknife Gulch at 3,950 feet. That is the low country of the unit — the ground animals drop into when they are pushed or when the weather turns. Two you can watch from a single knob is worth more than five you have to drive between.

Unit A388 terrain and land status

Measured from the unit boundary, not from the agency write-up

Named features inside the unit

Glass from: Scratchgravel Hills (5,248 ft)

Holding ground: Wakina Sky Gulch (4,326 ft), Butcherknife Gulch (3,950 ft)

Every one of these was tested against the unit polygon before it went on the map. They are starting points, not agency recommendations.

How to Hunt Pronghorn in Unit A388

Montana FWP publishes no pronghorn success figure for unit A388 that we can tie to this unit alone, so we won't quote one. The plan: spot from a vehicle or a rise at distance, then plan a stalk that uses the only cover there is — the curve of the ground.

Glassing from Mount Helena, Mount Ascension and Scratchgravel Hills

Take a position on one of Mount Helena (5,450 ft), Mount Ascension (5,274 ft), Scratchgravel Hills (5,248 ft) and French Bar Mountain (4,589 ft) and be on it before light. Work the morning with the air falling away from you, then accept that by mid-morning the wind has reversed and the plan has to change with it. Glass the edges first, then the shaded timber, then the edges again as the light goes. On the rut hunts, early-season bucks hold does and can be decoyed where the law allows it.

The way in: Interstate 15, Route 284 and US Highway 12

We have no road inventory for this unit, so the only routes we can name are the ones Montana FWP draws the boundary with: Interstate 15, Route 284, US Highway 12, Route 518 and Route 602. Those are its edges, not its interior — useful because they are where you leave the pavement, and useless for telling you what the inside is like. Pick the edge nearest the country you mean to hunt and work in from it on foot, rather than driving the perimeter looking for a way through.

A first plan from the pins on this page

The map above marks Scratchgravel Hills as places to see from, and Wakina Sky Gulch and Butcherknife Gulch as ground to watch. Each pin is a named feature verified to fall inside the unit line, not a spot anyone has hunted. Take the pair you can reach on one road and treat the rest as a second trip.

What we can't tell you

Some of the ground named above carries no land-status flag we trust, so check ownership on a current layer before you hunt it. We have no pronghorn success figure for this unit that survives checking against Montana FWP's own harvest and hunter counts, and we would rather say so than print a statewide average as though it were measured here.

Montana rules that decide your day

Summarised from FWP regulations. They change — read the current regulations and your permit-tag before you hunt.

Legal shooting hours

Big game may be taken from half an hour before sunrise to half an hour after sunset.

Motorized retrieval

Montana has no general off-road retrieval allowance; travel stays on open routes.

Tagging

Validate the tag and attach it to the carcass before moving the animal.

Leaving meat

Wasting game meat is illegal.

Where you may not shoot

Occupied structures — No discharging a firearm within 150 yards of an occupied dwelling without permission, and no shooting from or across a public road.

Antelope: where to put the shot

Broadside, straight up the front leg, a third of the way into the body. Pronghorn are shallow-chested and the lungs sit forward.

Shots to refuse

Range it, then range it again. Open country makes 400 yards look like 250.
Wait for the buck to stop. Nobody kills a running pronghorn cleanly on purpose.
Mind the backdrop. A miss carries a long way across a flat.

Plan the carry: roughly 30– 45 lb of boned-out meat, before head and hide — one large cooler with ice already in it. ProHunt planning estimate, not an agency figure.

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Antelope Success Rates

Montana FWP's 2023 harvest estimates carry no pronghorn row for unit A388 that we can read back to this unit on its own. Where the agency reports a unit inside a grouping, or prints a table our parser cannot resolve to a single column, we leave the number out rather than publish a statewide average as though it had been measured here. Montana FWP's current harvest estimates are the place to check before you apply.

Antelope Draw Odds

Season	Tags	Applicants	Draw %	Pts (n/p)
Rifle — General either sex (resident)	14	46	30.4%	—
Rifle — General either sex (nonresident)	1	3	33.3%	—

Data from 2024 draw results. Each row is one residency pool — read the label before the number. This agency publishes no point thresholds, so the Pts column stays blank and these are pool odds, not what a point total draws.

Open in Draw Odds Engine

Montana FWP's draw recap has no pronghorn record we can tie to unit A388. That usually means the licence is sold over the counter, is issued under a hunt code covering several units, or was not offered in the years we hold. Rather than estimate a point requirement, we leave it blank — check Montana FWP's own draw recap for the hunt code you mean to apply for.

Unit Logistics & Expectations

Planning Notes

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Terrain Difficulty

Easy to moderate. Prairie and sage country are walkable, but long glassing walks and fence navigation are normal.

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Hunting Pressure

Moderate. Permit caps limit buck hunters, but other prairie users — upland bird hunters, recreational shooters — share access.

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Weather

September can be hot and windy; October brings cold fronts and occasional snow. Hydration is critical.

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Permit Notes

HD 388-20 is a special-draw permit hunt. Apply by the FWP spring deadline and confirm sex/age restrictions.

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Frequently Asked Questions

Where is Colorado unit A388?

Unit A388 lies in Lewis and Clark and Jefferson counties. Montana FWP draws unit A388 with a boundary that runs on Interstate 15, Route 284, US Highway 12 and Route 518, and on Hauser Lake, Canyon Ferry Dam, Jackson Creek and Holmes Gulch, walked corner by corner in its hunting district legal descriptions.

What is the pronghorn success rate in unit A388?

Montana FWP publishes no pronghorn success figure we can tie to unit A388 on its own — the 2023 harvest tables either omit the unit or report it in a grouping we could not read back to it reliably. Rather than quote a statewide average as though it were measured here, we say so. Check Montana FWP's current harvest estimates before you apply.

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Sources & Verification

Every fact on this page is tied to a primary source below. Last fact-checked 2026-10-24.

Montana FWP Hunting District Legal Descriptions, 2026/2027 — antelope hunting districts (pp. 5-9) — Montana Fish, Wildlife & Parks · supports: GMU boundary description, Counties the unit lies in · accessed 2026-10-24
FWP hunting district feature services — deer/elk, antelope, moose, bighorn sheep and mountain goat districts (2026 and 2027 seasons) — Montana Fish, Wildlife & Parks · supports: Mapped extent of the unit, Which named ground falls inside the unit line · accessed 2026-10-24