How to Join and Class Schedule

The application window for 2023 NTMN class is now closed.

Our mission is to develop a corps of well-informed volunteers who provide education, outreach, and service dedicated to the beneficial management of natural resources and natural areas within their communities for the State of Texas. The North Texas Chapter primarily serves Dallas, Rockwall, and Kaufman counties. Visit this link to find other chapters throughout the state.

Master Naturalists enjoying a nature hike.

Why become a Master Naturalist?

Educate, Connect and Engage with Nature and People

  • Be part of a group of like-minded people that enjoy nature and the outdoors
  • Learn more about our natural environment in the North Texas area from experts in their fields
  • Work with people from North Texas with varied individual interests, experience, and talent
  • Help others love and value our natural environment
  • Learn about and support great nature organizations and their work
  • Protect and restore our natural resources
  • Make new friends and discover many wonderful prairies, forests, aquatic areas, nature centers, and parks you don’t even know exist

Nature walk with an urban biologist

Quick Views of our Chapter:  Check out these short videos to see more about us!

The NTMN Class Experience  (3 minutes)

I’m a Texas Master Naturalist (2 minute video)

Some 2023 classes will be held online, and some in person at Brookhaven College. We will have small-group, in-person experiences – nature walks, field trips, meet-ups to see Master Naturalist Projects and places to volunteer, and also for you to meet and get to know fellow Master Naturalists.

Learn. Volunteer. Repeat.

How do I become a certified Master Naturalist?

  • Submit the application for the class and pass the mandatory background check to be accepted into the program. To become a Master Naturalist, you must be at least 18 years of age.
  • Complete the training program: 40 classroom hours (in person and online), 3 field trips (1 each for Aquatic, Prairie, and Forest ecosystems), homework, and class project.
  • Obtain a minimum of 8 hours of approved advanced training and complete a minimum of 40 hours of chapter approved volunteer service within the same calendar year.

Master Naturalists maintain certification by completing 8 hours of advanced training and 40 hours of volunteer service each year.

The next class will start on Tuesday, January 31, 2023 and run through Tuesday, May 2, 2023

Sample application may be viewed here: sample app Applications were accepted 9/15-11/1/2022.

Preference will be given to applicants who express a commitment to stewardship of our natural resources; a willingness and availability to contribute time to volunteer service; a desire to complete the coursework, homework, and field trips; and those already volunteering.

Applicants will be notified of acceptance status in December following the application period each year.

The registration fee for the 2023 class is $200.00, which includes the membership payment for 2023, textbook, and other supplies. Please pay only AFTER you receive an acceptance notice. Detailed instructions will be given at that time. Acceptance notices will be e-mailed no later than December 10, 2022. Some partial scholarships are available. Send an e-mail to to request a scholarship application. 

If you have received an email notifying you that you have been accepted in the Class of 2023, a tuition invoice will be emailed to you from “North Texas Master Naturalists <>”.  You can securely pay your tuition by clicking the “Pay Invoice” button or by sending a check made out to “North Texas Master Naturalist” to the AgriLife office using address below. Payment is due by January 5, 2023.

DALLAS TX 75240-6580

What does the training program include?
The class provides volunteers with a broad naturalist education: ecological concepts, ecosystems and natural history; human impact on nature; and awareness of ethics, value judgment, and citizen science. Instructors are local experts in the natural resources community from universities, state and federal agencies, and nature centers. Tuesday evening classes meet from 6:00 to 9:00 p.m. and many will be held via Zoom. 

To obtain certification, each trainee must attend at least twelve of the thirteen classes. This is the draft schedule for 2023.


2023 Class Schedule
Date Unit Topic
31-Jan Introduction to Texas Master Naturalists
Unit 5 and Ecosystem Concepts
7-Feb Unit 4 Ecological Regions of Texas
14-Feb Unit 6 Ecosystem Management
Unit 21 and Urban Ecosystems
21-Feb Units 7,8 Geology and Effects of Weather and Climate
28-Feb Unit 17 Forest Ecology and Management
7-Mar Unit 20 Prairie Ecology and Management
21-Mar Unit 15 Herpetology – Amphibians
28-Mar Units 10 Taxonomy
Unit 16 Mammalogy
4-Apr VMS Review and
Units 14,18 Aquatic Ecology and Ichthyology
11-Apr Unit 13 Entomology
18-Apr Unit 12 Ornithology
25-Apr Unit 11 Botany
2-May Unit 22 Citizen Science
Unit 24 and Laws Ethics Regulations

Field Trip topics and locations: To obtain certification, each Trainee must attend one field trip in each category: Forest, Prairie, and Wetlands. Field trips take place on weekends. Several options will be available for each category. The locations and dates for the Field Trips have not been finalized. These are some examples of possible locations for the trips.

FOREST Field Trip Options   

Location More Information
Ned and Genie Fritz Buckeye Trail

7000 Bexar Street


A mile-long trail into the Great Trinity Forest that, at one point, borders the Trinity River.



Spring Creek Preserve

1770 Holford Road


A 69-acre preserve that features old-growth bottomland forest, with 20-40 ft tall limestone cliffs cut by a spring water stream. Over 650 species of plants & animals have been observed, including Solomon’s seals, very rare for this area.

Dogwood Canyon Audubon Center

1206 W. FM 1382
Cedar Hill, TX

Set at the mouth of a forested canyon, Dogwood Canyon is a 200-acre natural habitat with two miles of hiking trails. It is one of the few remaining places in Dallas County to observe native trees, grasses, wildflowers, etc.. The 3,000 acres greenbelt that surrounds DCAC is an important stopover for migrating birds and other species.


PRAIRIE Field Trip Options     

Location More Information
Clymer Meadow

4318  FM 1562

Celeste, TX The 1,400-acre Clymer Meadow Preserve contains some of the largest and most diverse remnants of the Blackland Prairie, including imperiled plants such as little bluestem-Indiangrass and gamagrass-switchgrass.  Owned by the Nature Conservancy of Texas, Clymer Meadow serves as a study center and is seldom open to the public.


Connemara Preserve


On the border of Allen and Plano just to the east of Alma Drive, north of Hedgcoxe Drive and just south of Bethany Drive.


A 72-acre oasis of beauty and serenity in the midst of suburban sprawl. Owned by the Connemara Conservancy Foundation, it is rich in floral diversity that is reminiscent of the tall grass Blackland Prairie that once existed in north Texas.


Lake Lewisville Environmental Learning Area (LLELA)

201 E. Jones St., (corner of Jones and Kealy streets), Lewisville, TX

A 2,000 acre property in Lewisville where the Blackland Prairies and the Eastern Cross Timbers meet, intersected by the Elm Fork of the Trinity River.




*Note: JBS is the best place in town for wetlands education.  There will be two trips to JBS on the calendar, and we are hoping that we can get 100% of trainees registered in one of these Saturday morning classes.  Understanding that Saturday mornings may not work for everyone, I’ll work with those of you who can’t attend the JBS trips to try and schedule an alternative option.

Location More Information
John Bunker Sands Wetlands Center

655 Martin Ln

Seagoville, TX

Located in the middle of the 2,000-acre East Fork Wetland Project, the JBS provides education and research opportunities pertaining to water conservation, wetland systems and wildlife management. The Center serves as the hub of environmental and social interest of man-made wetland habitats on the Rosewood Seagoville Ranch property. This includes the North Texas Municipal Water District’s 2,000 acre East Fork Wetland Project, and an additional 1,200 acres of bottomland hardwood forest restoration as part of the Bunker Sands Mitigation Bank.

Who can I contact for more information about the training program?

For more information on joining the North Texas Master Naturalist chapter, contact: Sue Matkin, New Class Director at

If you live in Collin, Denton, Ellis, or Tarrant County, consider your local chapter. The Texas Master Naturalist website provides a map and links for chapters across the state.

If you are a Trainee from another chapter, inquiring about a make up class or field trip, please email

Download our 2023 Member recruitment flyer in English here. The Spanish version of the flyer can be downloaded here.

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