An alpine basin of golden larches and a still tarn at last light, with elk far off on the slope

Ridgeline Mode · Hunting

Walk in with the map already in your head.

GMU boundaries, public-land detail, draw odds, weather windows, and offline topo for the backcountry. All in the same app as your fishing data.

Get Baseline Maps Switch from onX

Quick answer

Baseline Maps (Ridgeline mode) is a hunting GPS app for the Western US. It includes 1,300+ GMU boundaries across 11 Western states — Washington, Oregon, Idaho, Montana, Colorado, Wyoming, Utah, Arizona, New Mexico, Nevada, and California — plus land-ownership parcels, controlled hunt info, offline topo maps, and full regulations and seasons parsed by unit for Washington, Oregon, Idaho, and Montana. Coverage keeps expanding.

Baseline Maps hunt map over the Naneum unit near Ellensburg, Washington, with GMU boundaries, public land, and section grid

GMU map

Tap a unit. See the season, the boundaries, the access.

Every GMU across 11 Western states. Public-land percentage, season dates, weapon types, harvest stats, draw odds where applicable — with full regulations and seasons live for WA, OR, ID, and MT, and coverage expanding as new states come online. Tap-through to satellite, topo, and hillshade layers.

  • Parcel-level public vs private boundaries
  • Season dates parsed by unit
  • Controlled hunt draw odds (Oregon)
  • Offline topo + hillshade + satellite

What's in Ridgeline

Everything you need in the field. Nothing you don't.

01

GMU maps across 11 Western states

1,300+ game management units mapped with boundaries and access info across WA, OR, ID, MT, CO, WY, UT, AZ, NM, NV, and CA. Full regulations and season dates are live for WA, OR, ID, and MT, and coverage keeps expanding. Tap a unit to see what's open and when.

02

Land ownership boundaries

County parcel data overlaid on the map. Public, private, BLM, USFS, state lands — color-coded so you know where you can hunt at a glance.

03

Controlled hunt details

Oregon controlled hunt tags with point requirements and historical draw odds. Plan your application strategy with the numbers in front of you.

04

Offline topographic maps

Download regions for backcountry use. Topo, hillshade, satellite, parcels — sized to your route ahead of time.

05

Weather windows + thermals

Wind direction and thermal layers for the unit you’re hunting. Plan stand and stalk routes around scent, not luck.

06

Hunt journaling + waypoints

Mark stands, sign, scouting notes, and trail cams. Import from onX Hunt or Gaia GPS in 60 seconds — your waypoints, your data.

07

Background trail recording

GPS track recording continues even when the phone is in your pocket. Battery-aware sampling. Export GPX anytime.

08

Regulations parsed by GMU

ODFW, WDFW, and IDFG regulations parsed by unit. Season dates, bag limits, weapon restrictions — all in one place.

Two hunters checking Baseline Maps at the truck

vs onX

Hunting and fishing for the price of one state.

onX Hunt starts at $34.99/yr for a single state; Elite is $99.99. Baseline Maps Professional Edition is $34.99/yr for 11 Western hunting states plus all the fishing data — flows, tides, regs. Prices verified July 2026.

See the comparison Import from onX

FAQ

Hunting questions, answered.

What is a GMU?
A GMU — Game Management Unit — is a defined geographic area that state wildlife agencies use to manage hunting seasons, tags, and bag limits. Different states call them different things: WMUs in some states, Hunt Units in others, GMUs in the West. Each unit has its own season dates, weapon restrictions, and (sometimes) draw requirements.
How do I find public hunting land?
Baseline Maps shows BLM, USFS, state DNR, and DFW-owned public lands color-coded against private parcels. Filter the map to "public only" and you see every legally huntable acre in your unit. Crosshair any parcel to see the owner, acreage, and any access restrictions.
Is this an onX alternative?
Yes, with two differences: Baseline Maps includes fishing intelligence (Driftline mode) in the same app. And it is one edition (Professional, $34.99/year with the first week free, or $7.99/month) that covers every state, not per-state tiers.
Does Baseline Maps work offline?
Yes. Download map regions before you go. Topo, hillshade, satellite, parcels, and GMU boundaries all cache to the device. Tap-and-trace routes work without cell service. Offline map downloads are part of Professional Edition.
How do I import my onX waypoints?
Export your onX waypoints as a GPX or KML file from the onX app. In Baseline Maps, go to Settings > Import. Pick the file. Sixty seconds. Zero data loss.
Are draw odds included?
Yes for Oregon controlled hunts. Washington and Idaho draw odds support is on the roadmap. We use state agency raw data — not aggregator estimates.
Two hunters loading elk antlers into a pickup in sage country

Real units. Real boundaries. Real data.

First week free. One edition covers every state. No per-state surcharges.

Get Baseline Maps See fishing mode