National park106 titles

Red Hot Rangers

03 May 1947

The Lake District: A Wild Year

17 Feb 2017

Monumental Utah

29 Jul 1944

Our National Parks: A Seasonal Tour

01 Jan 1989

Gone, But Not Forgotten

09 Oct 2003

Pukaskwa National Park

01 Jan 1983

National Parks Adventure

12 Feb 2016

Yosemite: America's Treasure

05 May 2020

Your Friend, Ranger Doug

30 Oct 2020

Going Our Way

04 Nov 2010

National Parks Exploration Series: The Everglades

01 Dec 2011

Wildlife in the Rockies

01 Jan 1957

Gates of the Arctic

29 May 2008

Unbranded

25 Apr 2015

Smoky Mountain Park Rangers

06 Aug 2021

Saved by the Lioness

01 Oct 2009

The Virgin Goddess

18 Aug 1974

National Parks Exploration Series - The Grand Canyon

15 Mar 2002

National Parks Exploration Series - Glacier Crown of the continent

01 Dec 2011

Missing 411: The U.F.O. Connection

10 Sep 2023

North America's National Parks

27 May 2009

Missing 411: The Hunted

25 Jun 2019

Becoming Acadia

31 Dec 2015

America's National Parks: An Eagle's View

01 Feb 2013