Piney Woods · Outdoors & Wildlife

Caddo Lake National Wildlife Refuge

Caddo Lake National Wildlife Refuge near Karnack protects bottomland hardwood forest, wetlands and former Longhorn Army Ammunition Plant lands beside the Caddo Lake ecosystem, with trails, wildlife viewing and layered military-industrial history.

Photography: U.S. Fish and Wildlife Service Headquarters · CC BY 2.0 · Wikimedia Commons

Plan the visit

Caddo Lake National Wildlife Refuge at a glance

Where is Caddo Lake National Wildlife Refuge?: Caddo Lake National Wildlife Refuge is near Karnack, Texas, in Harrison County.
When is the best time to visit Caddo Lake National Wildlife Refuge?: Fall through spring for comfortable hiking and birding; spring adds strong songbird activity and lush wetland scenery.
Do I need to plan ahead for Caddo Lake National Wildlife Refuge?: The refuge includes former military-industrial property and sensitive habitat, so visitors should stay on designated roads and trails and check current closures or hunting notices.
Who manages Caddo Lake National Wildlife Refuge?: U.S. Fish and Wildlife Service

The place

Why Caddo Lake National Wildlife Refuge belongs on the list

Caddo Lake National Wildlife Refuge occupies land with two overlapping stories: one of East Texas bottomland forests and wetlands, and another of twentieth-century military industry. The refuge was established on portions of the former Longhorn Army Ammunition Plant and now protects habitat connected to the larger Caddo Lake ecosystem.

Public trails and wildlife-observation areas let visitors explore forest, wetland edges and historic remnants without requiring a boat. The setting supports wood ducks, migratory songbirds, reptiles, mammals and rare species associated with the biologically rich Cypress Basin.

This refuge pairs naturally with Caddo Lake State Park and Karnack-area paddling, but it should not be treated as interchangeable with those destinations. Federal refuge rules, hunting periods and site-specific access can differ, so travelers should check the current FWS map before exploring former industrial areas.

The details

Plan the visit

Nearest town: Near Karnack, Texas
Best season: Fall through spring for comfortable hiking and birding; spring adds strong songbird activity and lush wetland scenery.
County: Harrison County
Address: 15600 Highway 134, Karnack, TX 75661
Entry & reservations: The refuge includes former military-industrial property and sensitive habitat, so visitors should stay on designated roads and trails and check current closures or hunting notices.

Official visitor information

Quick answer

Planning a visit to Caddo Lake National Wildlife Refuge

What is Caddo Lake National Wildlife Refuge?: Caddo Lake National Wildlife Refuge near Karnack protects bottomland hardwood forest, wetlands and former Longhorn Army Ammunition Plant lands beside the Caddo Lake ecosystem, with trails, wildlife viewing and layered military-industrial history.
When is the best time to go?: Fall through spring for comfortable hiking and birding; spring adds strong songbird activity and lush wetland scenery.
What should I know before arriving?: The refuge includes former military-industrial property and sensitive habitat, so visitors should stay on designated roads and trails and check current closures or hunting notices.
Where is it?: Near Karnack, Texas, in Harrison County.

Field notes

What to know before you go

Conditions, closures, fees and availability can change. Use these notes to plan, then confirm the latest details with the official site before making the drive.

Things to do

Hiking and horseback trails

Don’t miss

Bottomland hardwood forest
Caddo Lake wetlands
Former Longhorn Army Ammunition Plant

Good to know

Best time to go: Fall through spring for comfortable hiking and birding; spring adds strong songbird activity and lush wetland scenery..
The refuge includes former military-industrial property and sensitive habitat, so visitors should stay on designated roads and trails and check current closures or hunting notices.

Build the trip

Places that pair well with this stop

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Close enough for the same trip

Nearby places

Places ordered by straight-line distance when reliable coordinates are available.

Karnack · Harrison County · Piney Woods
Caddo Lake State Park
A cypress-and-Spanish-moss East Texas park on the maze-like waters of Caddo Lake, with paddling, fishing, CCC cabins and easy access to one of the state’s most distinctive wetland landscapes.
Best season: Fall through spring for cooler paddling and hiking; spring is especially good for birding
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Approx. 1 miles away
Jefferson · Marion County · Piney Woods
Jefferson
An East Texas historic town on Big Cypress Bayou with nineteenth-century architecture, river-port history, antique shops and access to the Caddo Lake region.
Best season: Fall through spring for walking and bayou outingsUpdated Sep 2026
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Marshall · Harrison County · Piney Woods
Marshall
Marshall is an East Texas courthouse city with a monumental historic square, Civil War and civil-rights history, the birthplace-of-boogie-woogie story, museums, parks and a strong annual holiday tradition.
Best season: Fall through spring for walking; late November and December for Wonderland of Lights when current event dates are confirmedUpdated Sep 2026
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Marshall · Harrison County · Piney Woods
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The Marshall property uses generations of Starr family furnishings, clothing and records to trace more than a century of change in East Texas. The site is particularly useful for seeing how household life, wealth and civic influence changed from the 19th century into the modern era.
Best season: Year-round; spring and fall are usually the most comfortable for outdoor portions of a visit.Updated Aug 2026
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Center · Shelby County · Piney Woods
Center
Center is a Piney Woods county seat built around one of Texas' most distinctive historic courthouses, with an active downtown square, Shelby County history, civic events, nearby lakes and a practical East Texas visitor base.
Best season: Fall through spring for downtown and heritage exploration; spring and fall for scenic East Texas drives; festival dates for a busier community experienceUpdated Sep 2026
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Mount Vernon · Franklin County · Piney Woods
Mount Vernon
Mount Vernon is a Northeast Texas Main Street town with a restored courthouse square, museums, an active arts community, Bankhead Highway history, nature preserves and quick access to pine-lined Lake Cypress Springs.
Best season: Fall through spring for downtown, nature trails and lake-country drives; warm months for Lake Cypress Springs recreation with heat and storm planningUpdated Sep 2026
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Mineola · Wood County · Piney Woods
Mineola
Mineola is a walkable Wood County railroad town with a National Register downtown district and a city-owned nature preserve on the Sabine River offering birding, hiking, mountain biking, equestrian trails, fishing and camping.
Best season: Fall through spring for downtown walking and preserve trails; early mornings are best for birding and summer outdoor activityUpdated Sep 2026
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Lumberton · Hardin County · Piney Woods
Village Creek State Park
A quiet Big Thicket-area park near Lumberton where Village Creek winds through bottomland hardwoods and cypress, offering paddling, fishing, camping and shaded trails in humid Southeast Texas forest.
Best season: Fall through spring for cooler trails and paddling weather
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Sabine Pass · Jefferson County
Sea Rim State Park
A remote Gulf Coast park where marsh meets beach near Sabine Pass, combining more than five miles of shoreline with paddling trails, birding, fishing and primitive coastal camping.
Best season: Fall through spring for birding and milder beach weatherUpdated Sep 2026
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Sabine Pass · Jefferson County
McFaddin Beach
A remote Gulf shoreline associated with McFaddin National Wildlife Refuge, better suited to beachcombing, fishing, wildlife watching and self-reliant coastal trips than resort-style amenities.
Best season: March through May and September through November for milder beach weather; summer is busiest and hottestUpdated Sep 2026
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La Porte · Harris County
Sylvan Beach Park
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Best season: March through May and September through November for milder beach weather; summer is busiest and hottestUpdated Sep 2026
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Neches River National Wildlife Refuge
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Best season: Fall through spring for cooler forest exploration and migration; spring brings strong songbird activity.Updated Sep 2026
- Neches River bottomland hardwoods
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Dallas · Dallas County
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Best season: Spring for major flower displays and fall for cooler weather and seasonal gardens; summer is best near opening before afternoon heat buildsUpdated Aug 2026
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Fort Worth · Tarrant County
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Houston · Harris County
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Texas Explained

Understand the Texas behind the trip

Go beyond the destination with the systems, landscapes and history that explain why this part of Texas looks and works the way it does.

Texas RegionsSee how geography changes landscapes, climate and travel across the state.Read guide →Cultural RegionsUnderstand the settlement, migration and traditions behind different parts of Texas.Read guide →Farm-to-Market RoadsLearn the road system that still shapes how many Texas destinations connect.Read guide →

Explore all 10 Texas Explained guides →

Continue exploring

Build the weekendStart a Texas itinerary with Caddo Lake National Wildlife Refuge already on the route.More like thisMore places across Texas with the same kind of appeal.Explore the regionSee what else belongs on the route.Check the calendarAdd festivals, fairs and seasonal events.Look nearbyFind stories and places tied to Karnack.