John Martin Reservoir

Type
Lake or reservoir, Colorado (West)
Designation
Featured sport-fishing water
USGS gauges
None listed
Guides
None listed
Shops
None listed

Today on John Martin Reservoir

No live reading for this water
Why there is no reading

Nothing live is published for this water, so there is no reading or verdict today. The readings section below says what we checked.

Regulations & access Guides & shops

John Martin Reservoir is a lake or reservoir in Colorado, listed as Featured sport-fishing water by Colorado Parks and Wildlife.

More about John Martin Reservoir

Updated · Sources: CPW Quality Waters

Representative photograph of similar water; not a photograph of this place.
Representative photograph, not this water.
Where it is

John Martin Reservoir is a lake or reservoir in Colorado.

No real-time gauge

No real-time gauge on this water. We found no active USGS gauge on John Martin Reservoir or on its stream system within about 25 miles, and no dam operator publishes data for it. A missing gauge says nothing about the water itself. Find the gauges nearest John Martin Reservoir

About these readings

Nothing live is published for this water; the note below says what we checked.

Where to fish

About this

Start from the agency's public access map. Nothing on this page grants or implies access: check the agency map, posted signs and landowner permission before you fish.

Nothing on this page grants or implies access.

Restrooms near John Martin Reservoir

Restrooms near John Martin Reservoir

Restrooms within 2 miles of John Martin Reservoir in a straight line, nearest first, with what anglers found when they went. The map says a restroom is there, not whether it is clean or open today.

No restroom mapped within 2 mi yet — add one you know.

Campgrounds, fishing access sites and boat ramps often have one that isn't on the map yet.

Restroom locations and map details: © OpenStreetMap contributors, Open Database License, read Oct 24, 2026. Ratings, answers and photos are members' own; who shared them is never shown, and every photo is reviewed before it appears. Visits older than 18 months no longer count. Distances are straight-line miles, not driving. Nothing here grants access to private land. Community guidelines.

More water near John Martin Reservoir

  • The Arkansas River running past the river walk in downtown SalidaGold Medal Water
    Photo credit

    The Arkansas River in downtown Salida, Colorado. Photo: Frank Schulenburg, CC BY-SA 4.0, via Wikimedia Commons

    Arkansas River

    Colorado · about 10 mi

  • Navajo Lake's blue water and mesa shoreline seen through juniper from Navajo Lake State ParkFeatured sport-fishing waterRepresentative photo · not Douglas Reservoir
    Photo credit

    Navajo Lake from Navajo Lake State Park, New Mexico. Photo: Larry D. Moore, CC BY 4.0, via Wikimedia Commons Not Douglas Reservoir.

    Douglas Reservoir

    Colorado · about 64 mi

  • The South Platte River curving past a gravel bar under green trees in Waterton CanyonSpecial-regulation trout waterRepresentative photo · not Huerfano River
    Photo credit

    The South Platte River in Waterton Canyon, southwest of Denver. Photo: mark byzewski, CC BY 2.0, via Wikimedia Commons Not Huerfano River.

    Huerfano River

    Colorado · about 68 mi

Regulations

About this

Seasons, limits, special regulations and closures for each reach are on the agency pages below. Read them before you go.

Official designation: Featured sport-fishing water

Each comes from the agency's own published list; where the list names a reach it is quoted. A designation applies to the listed reach, not necessarily the whole water.

The water on the map

About this

Measured from the NHDPlus High Resolution (flowlines and waterbodies) (U.S. Geological Survey, read 2026-11-04) for this water’s own mapped feature. Rounded figures; they describe the channel, not today’s conditions.

Surface area
11,690 acres
Watershed
Upper Arkansas-John Martin Reservoir

Public land along it

About this

Areas the Protected Areas Database of the United States (PAD-US), public access (U.S. Geological Survey, Gap Analysis Project, read 2026-11-04) lists as owned or held in easement and open to the public, crossed by the mapped shoreline. Boundaries are mapped, not surveyed. Nothing on this page grants or implies access: check the agency map, posted signs and landowner permission before you fish.

45.6 of 52.4 mi of shoreline on public land

  • John Martin Reservoir State Wildlife AreaState Fish and Wildlife · 41.8 mi · restricted
  • John Martin Reservoir State ParkState Fish and Wildlife · 3.6 mi
  • John Martin Reservoir State Wildlife AreaState Fish and Wildlife · 0.3 mi

Nothing on this page grants or implies access.

Guides and shops near John Martin Reservoir

About this

Listings marked Unclaimed are built from open map records and the business's own website: confirm licensing, rates, dates and hours directly.

Guides

No guide within 40 miles yet.

Shops nearby

No shop nearby yet.

How these are chosen

Guides whose own website names this water come first, nearest first. Distances are straight-line.

Shops: fly shops first. A distance is shown when the shop’s website gives its location (within 60 miles); otherwise the shop is in one of the towns within 25 miles of the water.

Guide and shop listings come from the Legendary directories.

Species and hatches

About this

The hatch and season chart for this water's region.

When the bugs come off

Regional hatch months: Southwest and Colorado
About this chart

1 hatch charted for the region, not measured on this water. From Utah Division of Wildlife Resources.

  1. January: no charted hatch
  2. February: no charted hatch
  3. March: no charted hatch
  4. April: no charted hatch
  5. May: no charted hatch
  6. June: 1 charted hatch
  7. July: 1 charted hatch
  8. August: no charted hatch
  9. September: no charted hatch
  10. October: no charted hatch
  11. November: no charted hatch
  12. December: no charted hatch

Green drake (June to July)

Plan a trip here

About this

None of our destination hubs is within 40 miles in a straight line. The trip planner builds a trip around the water itself: the guides and shops listed within 40 miles of it, its gauges and its nearest towns and airports.

No hub within 40 miles

Gear checklist

About this

A stillwater fly-fishing checklist for lakes and ponds: a 9–10 ft 5–6 weight rod, floating and intermediate lines, chironomids and leeches, and float-tube options, with estimated prices and where to buy.

An angler stands knee-deep in a calm lake with the rod bent, playing a trout

Lakes & stillwater

9′–10′ rod, 5–6 weight, floating + intermediate lines · Rainbow, brook and brown trout in lakes

Open the checklist
Videos for this water (3)

Watch: stillwater trout basics

About this

Chironomids, leeches and where fish hold in a lake.

Public YouTube videos from established channels, chosen by us to support this page. Not sponsored; the creators are not affiliated with Legendary Fly Gear.

  • Catch More Trout in Lakes Using Indicators – Stillwater Fly Fishing TipsEmbedded from YouTube · Fly Fish Food · not affiliated with Legendary Fly Gear. Watch on YouTube
  • Stillwater Fly Fishing Is Simpler Than You Think! | Introduction to Stillwater Fly FishingEmbedded from YouTube · Fly Fish Food · not affiliated with Legendary Fly Gear. Watch on YouTube
  • Why is this Chironomid Fly Pattern So Versatile? | Two-Toner BC Chironomid | Fly Tying TutorialEmbedded from YouTube · Fly Fish Food · not affiliated with Legendary Fly Gear. Watch on YouTube

Not sponsored All videos on stillwater

Fish Tales

About this

Trip stories anglers chose to share publicly and tagged with John Martin Reservoir.

No stories from here yet.

Sources for this page

Not a statement of access, fish presence or conditions.

Something wrong?

All 8 sources and dates

A water page organises discovery. It does not assert public access, legal access, current fish presence, guide availability or fishing conditions.

Flows, gauge statistics and flood stages come from USGS and the National Weather Service when the page is shown. Regulations, stocking, species and season statements link to the agency that publishes them; this page copies only the species names and the quoted sentences. Guide and shop listings come from the Legendary directories. Position: the point for “John Martin Reservoir” (reservoir) in the USGS Geographic Names Information System. Water type is our own classification.