Schedules change frequently
Please keep TRACK of us.
You can email us at trackdoctor@tracknature.com.

Jim Halfpenny, PhD
Diann Thompson, BSN
PO Box 989
Gardiner, MT 59030

to learn more about Jim click
for the forensic side of
A Naturalist's World
click Track Scene Investigation (TSI)

Thank you for visiting our field class listing and product information site.

A Naturalist`s World is dedicated to providing
educational programs and materials
about natural history and ecology.

Classes include tracking, carnivore ecology,
wildlife observation, rare species, northern lights,
and alpine and winter ecology.

Instructional programs vary from 2 days to 2 weeks.

Programs provided at locations across North America.

Special Events and Offerings are listed below.

For other materials and to register for classes go to the top of this page, select a topic, and visit the new page to view offerings.

A Naturalist's World is permitted operator in Yellowstone National Park

LEARN in the field!
Don't just talk about it.

Photo by Rick Keats, Yellowstone Year Round

View from Track Education Center
Provided by A Naturalist's World

To view full-screen, live webcam move mouse over image & click square on lower right

S P A C E ..... W E A T H E R
Solar, Aurora, Radio
Banner by Paul Hermann (N0NBH)


Currently we are putting the
wolf genealogy of Yellowstone wolves online
for access by all wolf fans.

Go to


to learn more

Scroll down for program details on

----- Summer Tracking Courses -----
Basic Tracking June 19 & 20, 2017
Advanced Tracking June 21, 22, 23, 2017
***** Go to Classes Tab to Register for tracking *****

----- Greenland by Land-----
September 16 - 23, 2017

----- Into the Northwest Passage -----
August 22 - September 1, 2017

----- Polar Bears -----
Oct 31 - Nov 6, 2017 - full
Nov. 8 - 14, 2017 - one opening left

Programs details below

Explore the Arctic
DATES: September 16 - 23, 2017

Arctic Tundra! Whales!
Fastest moving glaciers! Biggest icebergs!
of northern hemisphere

Live a week in Greenland with Jim
Live in town of Ilulissat

Download complete brochure by clicking here!

Program starts and ends in Reykjavik, Iceland
COST: $4800

If you want to personally talk with Jim Halfpenny about this expedition,
leave a clear message at (406) 848-9458.

Explore the Arctic
Into the Northwest Passage
DATES: Aug. 22 - Sep. 7, 2017

Greenland, Baffin Island, Canadian Archipelago of Islands
A major expedition to the high Arctic, but in luxury!

Cost: depends on berth selected; Lower-cost berths are limited and go fast, register quickly!!

If you want to personally talk with Jim Halfpenny about this expedition,
leave a clear message at (406) 848-9458.
Jim will call back when he returns from the field.

Explore the Arctic
Polar Bears of the Arctic
DATES: Oct 31 - Nov 7, 2017 - full
DATES: Nov. 8 - 14, 2017 - one opening left

The World of Ice Bears!
Hudson Bay and Churchill
Live at a research station - where bears knock at the doors

Visit the boreal forest, coastal, tundra biomes
Days spent tracking and studying and filming bear behavior

Ice Bears
Fox, Owls, Hares, Ptarmigan - All are white
Cultures of the Inuit, Cree, and Athabascans

Trip of a Life Time - for Ursophiles

Taught by Dr. Jim Halfpenny

To register, CLICK HERE then scroll down.

Program starts and ends in Winnipeg, Canada
Polar Bear Base is east of Churchill, Canada
On the edge of the Arctic

COST: $4300

2017 WOLF CHART UPDATES: available about May 15, 2017

To order 2017 wolf charts, CLICK HERE.

Residencies in Nature
Natural History in the Greater Yellowstone Ecosystem

Observe and learn in the field!

Enhance your knowledge and skills of the natural arena!
With an academic, field-experience mentored by Dr. Jim Halfpenny

4 weeks in the Greater Yellowstone Ecosystem
for all students of nature

A guided trail of individualized, field-oriented self-study
professional-level, observational-based

Choose one of four study paths
animal tracking
cold weather ecology
general natural history.
mammal ecology and behavior

To learn more or register for a Residency, CLICK HERE.

Track Education Center and Museum

The home of A Natualist's World is in Gardiner, Montana
at the center of the Greater Yellowstone Ecosystem.

To learn more about the Track Education Center, click here.

Tracks Scats and Signs
Rocky Mountain Mammals

Folding pictorial 6-panel laminated field guide
36 Species Accounts
Photos and Text by Dr. Jim Halfpenny
Photographs of common mammals,tracks, trails, signs, scat
Concise explanation of features and habitats
Backpackable, rugged, waterproof
For general enthusiasts

Picture of cover and Grizzly Species Account

Example of panel fold outs

To order Tracks Scats & signs of Rocky Mountain Mammals


From Jim's personal collection
Selected to make a lasting impression
For educational and artistic purposes

Each is an exact duplicate and measurements may be made from the cast.

Casts were selected for large size; they are not from average-sized animals. They are impressive!

All footprint casts are life-size,
from wild, free-roaming carnivores
come with a written history of the animal, cast surface and location.

Casts by Dr. Jim Halfpenny

A Naturalist's World
proudly presents
three cold-cast bronze art pieces:

Patriarch of the Druid Wolf Pack - 21M
Matriarchs of the Druid Wolf Pack - 40F / 42F
Druid Sisters - Wolves 40F / 42F

These pieces represent wolf restoration
and will grace any desk, table, or wall in any home or office.
The bronzes were created from footprints obtained by Jim Halfpenny.
Tracks were made from Druid wolf Packalpha male 21M or from one of the Druid sisters, 40F or 42F.

To learn more about these casts, CLICK HERE.
The comprehensive portrait of
grizzly bears and black bears
in the Greater Yellowstone Ecosystem.

Written by Jim Halfpenny

New scientific research including
cutting-edge discoveries about
bear biology and ecology.

bear sizes, bear play, curiosity, raising cubs,
wolves and bears, predation and scavenging,
denning, hibernation, and eating moths and worms.

Explains how bears are responding to critical ecological changes taking place in Yellowstone

Companion book to Yellowstone Wolves in the Wild.

Just $19.95

To order Yellowstone Bears in the Wild CLICK HERE.

Track the genealogy of your favorite wolf and pack since the beginning!

Written by Jim Halfpenny

Charting Yellowstone wolves: the pictoral record of the
greatest wildlife management experiment of the 20th century,
Wolf Restoration to the Greater Yellowstone Ecosystem.

Contained here is the complete collection of all
annual laminated wolf charts produced since the beginning.

Now you can trace the genealogy of your favorite wolves and packs
with your own complete permanent record of all 46 charts.

Also included are detailed records of the founders and their fates.
Supplemental materials include range maps for the Ecosystem through 2011.

Just $24.95

To order Charting Yellowtone Wolves CLICK HERE.

Find Wolves by tracks, urine, scat, and carcasses!

Written by Jim Halfpenny and Tracy Furman

Essential Guide to Understanding Wolf Footprints, Trails and Sign!

Life history for interpreting when and how trails were made.
Information and measurements allow for determing age and gender.
Covers scents posts, scat, carcasses.

Comparative information for
domestic dogs, coyotes, bobcats, cougars, and bears.
Detailed discussion covers differentiation of
wolf sign from that of other canids.

Just $9.95

To order Tracking Wolves: The Basics CLICK HERE.

A How To Manual & Aid To Footprint Identification

Written by Jim Halfpenny, Meghan Walla-Murphy, Elizabeth Rogers, and David Tiller

Power to the Tracker! Now you can get tracks anywhere!

Ingenious devices allow tracker's to get footprints of elusive mammals.
Used where natural substrates do not allow tracking,
such as inside buildings or on hard ground.

Track plates allow you to explore the hidden world
of what lurks when you are not looking.
Used to find rare and endangered species.
Used for non-invasive censusing.

Just $19.95

To order Track Plates for Mammals CLICK HERE.


Now reprinted.
First edition of 5000 sold out immediately

by Jim Halfpenny and Diann Thompson.

First book written about wolf restoration
A must-have, historical glimpse
Pictures of original wolves
Their pack history in Canada.
Details of first 1.5 years
Pack composition charts for 1995 and 1996
And more.

Just $19.95

To order Discovering Yellowstone Wolves CLICK HERE.

A coast-to-coast guide to tracking
what critters went before you
Verify and Prove Their Presence

New book created from Jim Halfpenny's
Regional Series of 10 books about Scats and Tracks

Easy Reference Descriptions
Measurements and Illustrations
nearly 150 Amphibians, Reptiles, Birds, and Mammals
Identification Key and Glossary of Tracking Terms
Instructions for Documenting Your Finds
Common and Rare Species

Paperback $9.95

Written by Dr. Jim Halfpenny and Illustrated by Todd Tealander

Yellowstone Wolves in the Wild
Everything you wanted to know about the wolves of Yellowstone!

written by Jim Halfpenny.
For details about Yellowstone Wolves in the Wild, CLICK HERE.

For The Outdoor Enthusiast, Check Our Friend's Web Sites

Wolf Restoration in Idaho, Montana, and Wyoming
Ralph Maughan's Wolf Report

Learning About Wolves
Science, Humanities, and a 100-lb Gray Wolf called Koani
Pat Tucker and Bruce Weide

Art and Sculptures of wolves and the Greater Yellowstone Ecosystem
Bronze and drawings by
George Bumann

Photographs of the Greater Yellowstone Ecosystem
Enjoy the Photography of our friends
Dan, Cindy, and Cassie Hartman
Mark Millar
Bob Weselmann

Horseback trips into Yellowstone Ecosystem
our guides and friends
HA and Vicki Moore

The study of How Ancient Peoples Lived
Ndakinna Education Center
James Bruchac

Society for Primitive Technology

Hollowtop Outdoor Primitive School (HOPS)

Top of Page