April 27, 2021 - "Insights Into the Geologic Evolution of the Virgin/Colorado River System" For the Zion Natural History Association. Lecture to be given in St. George, Utah, 7 PM.
June 3, 2021 - For the Mingus Gem and Mineral Club. Topic TBD.
June 21, 2021 - "Climate Change as Revealed in Antarctica". For Southwest Seminars, Santa Fe, New Mexico.
July 14, 2021 - “The Mogollon Rim: Arizona’s Other World-Class Landscape” For Keep Sedona Beautiful.
October 15-17 - Seminar on the Evolution of the Colorado River and Grand Canyon. At Grand Canyon National Park. I will present a paper at this conference. Check back for details.
Check back often for other additions to be made.
2020 Lectures
February 2, 2020 - "Antarctica" 2:30 PM. Spirit of Joy Lutheran Church, Clarkdale, AZ. Free and open to the public. I will discuss my my many travels to the White Continent and how it relates to global climate change.
February 6, 2020 - "In the Footsteps of Martha Summerhayes" 7 PM. For the Prescott Corral of Westerners.
NOTE: Because of the worldwide pandemic most of my in-person lectures beyond this date have been postponed, cancelled, or moved to the online platform Zoom. See below for more information.
April 9, 2020 - Zoom Lecture on Learning Geology Facebook page. You can access the entire lecture here.
June 4, 2020 - Zoom Lecture for Sagewood Retirement Community, Scottsdale, Arizona. "In the Footsteps of Martha Summerhayes" 10 AM.
June 29, 2020 - "Sedona Geology". 12 PM. For The Enchantment Resort Guides at the Resort.
July 10, 2020 - "Downtown Flagstaff Geology Walk" for the Museum of Northern Arizona Docents. You can see a recording of this walk on the Museum Facebook page here.
August 14, 2020 - Zoom Lecture"Smitten By Stone: How We Came to Love the Grand Canyon" 7 PM. Lecture given for Grand Canyon Conservancy Donors. Private.
August 19, 2020 - Zoom Lecture "A Virtual River Trip in Grand Canyon" 1 PM. Lecture given for prospective Grand Canyon Conservancy Donors. Private.
September 3, 2020 - Zoom Lecture "A Virtual River Trip in Grand Canyon" 11 AM. Provided as a fundraiser for the OLLI Sedona Campus (Osher Lifelong Learning Institute).
November 5, 2020 - Zoom Lecture "A Virtual River Trip in Grand Canyon" 6 PM. Provided as a fundraiser for the Museum of Northern Arizona. $12 for members; $15 for non-members. Sign up here and support the Museum.
November 11, 2020 - Zoom Lecture "A Virtual River Trip in Grand Canyon" 7 PM. Given for my good friends at the Desert Foothills Chapter of the Arizona Archaeology Society. Members only.
November 14, 2020 - Zoom Lecture "The Mogollon Rim: Arizona’s Other World-Class Landscape.” This will as part of the monthly meeting of this organization. You can access the web site listing here.
2019 Lectures
January 3, 2019 - "Smitten By Stone: How We Came to Love the Grand Canyon." Begins at 1 PM at the Coolidge Arizona Public Library. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
January 7, 2019 - "Grand Canyon Geology." Presented to the Pink Jeep Grand Canyon tour guides. 7 PM at the Best Western Arroyo Roble Hotel Auditorium, 400 N State Route 89A, Sedona, AZ. Guides only please.
January 8, 2019 - "Ancient Landscapes of Western North America." Presented to the members of the Central Arizona Geology Club at 6:30 PM in the Founders Room, Prescott Public Library, Prescott, AZ. Space limited to 105 persons and strictly enforced - come early! This will be an introduction to my new book of the same name co-authored with Dr. Ron Blakey.
January 10, 2019 - "Antarctica." For Sagewood Retirement Community residents in, Scottsdale, Arizona. 11 AM.
February 7, 2019 - "Jumping Off the Black Bridge: The Place Is In Charge." Begins at 5:30 PM at the Brannigar-Chase Auditorium at the Museum of Northern Arizona. This will be a benefit lecture about an event that happened near Phantom Ranch in 1978. This benefit gathering is for Grand Canyon Youth, a Flagstaff-based non-profit that places young men and women on Southwestern river trips.
February 12, 2019 - "Smitten By Stone: How We Came to Love the Grand Canyon." 7 PM, Given at the ASU Colleges at Lake Havasu, Gymnasium for the monthly meeting of the Historical Society. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
February 15, 2019 - "The Uplifting Story of the Colorado Plateau." Presented at the Shrine of the Ages Auditorium, South Rim, Grand Canyon National Park. At the 2019 Grand Canyon Conservancy Field Institute's Guide Training Seminar. Invited talk.
February 19, 2019 - "Antarctica: Its Relationship to Arizona." For the Sedona Gem and Mineral Club, 7 PM. Given at the Sedona Public Library in Sedona for the monthly meeting - for members and their guests.
February 22, 2019 - "Geology for the Proletariat: "Carving Grand Canyon" and "Ancient Landscapes of the Colorado Plateau." Presented at the Shrine of the Ages Auditorium, South Rim, Grand Canyon National Park. For the 2019 Grand Canyon History Symposium. Invited talk.
March 2, 2019 - "In the Footsteps of Martha Summerhayes". presented at the Springerville Heritage Center, 418 East Main St., Springerville, AZ. 10 AM. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
April 9, 2019 - "The Grand Canyon: Is It Old, Young, Both?" Presented to the Northwest Geological Society in Seattle, Washington. For the monthly meeting of the membership. Fee to attend for non-members.
April 20, 2019 - "Geology for the Proletariat: "Carving Grand Canyon" and "Ancient Landscapes of the Colorado Plateau." Presented at the Shrine of the Ages Auditorium, South Rim, Grand Canyon National Park. At the 2019 Grand Canyon Geology Symposium. Invited talk.
April 26, 2019 - "The Geology of Sedona and the Verde Valley." For Osher Lifelong Learning Institute (OLLI) at Yavapai College, Sedona Campus, Sedona, AZ. A three-hour course given for OLLI members. 9 AM to 12 Noon. Fee based lecture course.
May 16, 2019 - "In the Footsteps of Martha Summerhayes". presented at the Saddlebrooke Community Center, 64500 E Saddlebrooke Blvd, Tucson, AZ. 4 PM. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
June 15, 2019 - "In the Footsteps of Martha Summerhayes". presented at the Phippen Western Art Museum, 4701 N State Route 89, Prescott, AZ. 1 PM. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
June 19, 2019 - "Smitten By Stone: How We Came to Love the Grand Canyon" 8 PM, Grand Canyon Lodge Auditorium, North Rim, Grand Canyon National Park. Free and open to the public. This will be the Evening Ranger Program at the Park.
July 6, 2019 - "Smitten By Stone: How We Came to Love the Grand Canyon" 7 PM, McKee Amphitheater, South Rim, Grand Canyon National Park. Free and open to the public. This will be delivered as the Evening Ranger Program at the Park.
August 12, 2019 - Celebrate the 100th Anniversary of Grand Canyon National Park with this personal interview to be broadcast on the radio show "Here and Now." I will be talking with host Jeremy Hobson about the importance of the Grand Canyon as an idea and muse. A record of the interview can be heard here. Note: The show was recorded on February 4, 2019 at the KNAU studios and broadcast again on May 25, 2020.
October 9, 2019 - "From NAU Geology to Far Away Landscapes: Careers in Informal Geo-Science Education." Northern Arizona Geology Dept. Seminar to undergrad students, 4 PM, Room 103, Geology Bldg, NAU Campus.
October 30, 2019 - "In the Footsteps of Martha Summerhayes" 2 PM, McFarland State Historic Park, 90 W Ruggles St, Florence, AZ. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
October 31, 2019 - "The Geology of Sedona and the Verde Valley." For Osher Lifelong Learning Institute (OLLI) at Arizona State University, Tempe. A three-hour course given at the Tempe Library for OLLI enrollees. 9 AM to 12 Noon. Fee based lecture course.
October 31, 2019 - "Ancient Landscapes of the Colorado Plateau." Natural History Institute, 7 PM. Given at the NHI building, located at 126 N Marina St., Prescott, AZ. For members.
November 2, 2019 - "Geologic History of the Verde Valley." For the Prescott Gem and Mineral Club, 10 AM. Given at the Elk's Club in Prescott Valley for the monthly meeting - for members and their guests.
November 19, 2019 - "Journey to Antarctica." For the Men's Dinner Club of Oklahoma City. I received a nice invitation to speak in Oklahoma City about the Antarctic. The lecture will be given at the monthly meeting of the Men's Dinner Club, established in 1908. The venue is the National Cowboy and Western Heritage Museum in OKC. Dinner is at 6:30 and the lecture begins when desert is served. Members only.
2018 Lectures
February 21, 2018 - "Can A Rock Fall On My Head: Dynamic Grand Canyon Geology." 1:30 PM. A Facebook Live presentation for river guides at AzRA.
February 24, 2018 - "Ancient Landscapes of Western North America." 2:30 PM. Presented to the members of the Museum of Northern Arizona as part of the Sunday Lecture Series. Brannigan-Chase Lecture Hall. Free to members; Museum admission only to non-members.
April 1, 2018 - "Grand Canyon Geology Training" 3 PM. For the Canyon Explorations River Guides. Given after the Guides Training Seminar at Hatchland, AZ.
April 11, 2018 - "Smitten By Stone: How We Came to Love the Grand Canyon" 7 PM, For the Desert Foothills Chapter of the Arizona Archaeology Society. Lecture will be held at the Community Building (Maitland Hall) of the Good Shepherd of the Hills Church, 6502 E. Cave Creek Road, Cave Creek, AZ. Members only.
April 14, 2018 - "Geologic History of the Verde Valley." 2:30 PM. At The Enchantment Resort located at 525 Boynton Canyon Rd, Sedona, AZ. This is part of a cooperative agreement between the resort and the Museum of Northern Arizona.
April 23, 2018 - "Geologic History of the Verde Valley." 9:00 AM to 12 Noon. For the Sedona Campus of Yavapai Colege and the Osher Lifelong Learning Institute (OLLI). It will be held at the Yavapai College campus, located at 4215 Arts Village Dr, Sedona, AZ. The class is limited to 80 persons.
June 12, 2018 - "Smitten By Stone: How We Came to Love the Grand Canyon" 6 PM, Part of the Lecture Series for the City of Flagstaff Public Library, Eastside Branch.
July 17, 2018 - "Smitten By Stone: How We Came to Love the Grand Canyon" 6 PM, Part of the Lecture Series for the City of Flagstaff Public Library, Westside Branch in the Jan Romero Room.
July 22, 2018 - "In the Footsteps of Martha Summerhayes". 2:30 PM,Presented in the Founders Room of the Prescott Public Library, Prescott, AZ. Space limited to 105 persons and strictly enforced - come early!
November 28, 2018 - "In the Footsteps of Martha Summerhayes". 4:00 PM. Ajo, AZ to the Sonoran Speaker Group. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
December 3, 2018 - "Smitten By Stone: How We Came to Love the Grand Canyon" 7 PM, Santa Fe, New Mexico for the Southwest Seminars Lecture Series. Given at the Hotel Santa Fe. $15 admission or buy season pass.
December 6, 2018 - "Smitten By Stone: How We Came to Love the Grand Canyon" 10 AM, at the Monthly meeting of the Sedona Muses. At The Church of the Red Rocks, 54 Bowstring Dr, Sedona, AZ. Members and guests only.
December 10, 2018 - "In the Footsteps of Martha Summerhayes". 1 PM, presented at the Church of the Nazarene, 55 Rojo Drive Village of Oak Creek, Sedona AZ, for the Sedona Public Library. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
December 11, 2018 - "The Geology of Sedona and the Verde Valley." Presented to the Pink Jeep Grand Canyon tour guides. 6 PM at the Courtyard by Marriott, 4105 W State Route 89A, Sedona, AZ. Guides only please.
2017 Lectures
February 2, 2017 - "Grand Canyon - Monument to an Ancient Earth." 11 AM given to the Sedona Muses at the Church of the Red Rocks in Sedona. If you are a member, please plan to attend this informative lecture where I will discuss my new book and how science and religion can coexist.
February 4, 2017 - "Smitten By Stone: How We Came to Love the Grand Canyon" 1 PM at the Prescott Valley Public Library, 7401 E Civic Circle Prescott Valley, Arizona. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
February 9, 2017 - "Ancient Landscapes of the American Southwest" 11 AM. Presented in Ajo Arizona and free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
February 15, 2017 - "In the Footsteps of Martha Summerhayes" 11 AM, Surprise Public Library, AZ. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
February 16, 2017 - "In the Footsteps of Martha Summerhayes". Presented at the Desert Caballero Western Museum in Wickenburg, AZ. 12 Noon. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
February 16, 2017 - "Smitten By Stone: How We Came to Love the Grand Canyon." 7 PM and part of the Living Room Lecture Series at the Colton House on the grounds of the Museum of Northern Arizona. $10.00 and call 928-774-5211 ext. 219 to register and reserve space.
February 19, 2017 - "Grand Canyon - Monument to an Ancient Earth." 2:30 PM. Spirit of Joy Lutheran Church, Clarkdale, AZ. Free and open to the public. I will discuss my new book and how science and religion can coexist.
February 20, 2017 - "Geology of Sedona and the Verde Valley." This is my first program given through the Osher Lifelong Learning Institute (OLLI). It will be held at Yavapai College in Sedona and is limited to just 15 persons. 9 AM to 12 PM. You can register and sign up here.
February 22, 2017 - "Around South America." 12 PM for the Sedona Welcomers group. $25 fee with lunch at the Sedona Hilton Hotel in the Village of Oak Creek.
March 15, 2017 - "Ancient Landscapes of the American Southwest" 7 PM. In Page, AZ for the Glen Canyon Natural History Association. Free and open to the public.
March 28, 2017 - "Smitten By Stone: How We Came to Love the Grand Canyon." 12PM at The Chemical Heritage Foundation, 315 Chestnut Street, Philadelphia, PA. A private lecture given to the Your Part-Time Controller group.
April 10, 2017 - "Extreme Landscapes of the Colorado Plateau." 7 PM. Part of the Sedona Muses Annual Lecture Series. Church of the Red Rocks in Sedona. This is a ticketed event and tickets can be purchased at the door and on this web site.
September 19, 2017 - "In the Footsteps of Martha Summerhayes". Presented to the Gila County Historical Society in Payson, AZ. Free and open to the public as this lecture is part of the Arizona Humanities AZ Speaks program.
September 25, 2017"Ancient Landscapes of the American Southwest" 6:30 PM a the Museum of Northern Arizona for the 2017 Flagstaff Festival of Science.
November 18, 2017 - "In the Footsteps of Martha Summerhayes". 7 PM. Presented at Riordan Mansion State Historic Park, 409 W Riordan Rd, Flagstaff, AZ. Free and open to the public.
More lectures will be added as the year progresses. Check back again.
2016 Lectures
January 27, 2016 - "Journey to the Antarctic" for the Sedona Welcomers. 12 PM, Tequa Ballroom at the Sedona Hilton Hotel. If you are a member of the Welcomers, please plan to attend this colorful lecture.
January 28, 2016 - "Geology of the Grand Canyon" at Mabel Padgett Elementary School, Goodyear, AZ. My grand-daughter Micaela is in this class!
February 4, 2016 - "Ancient Landscapes of Sedona" for the Sedona Muses. 11 AM, Church of the Red Rocks. If you are a member of the Muses, please plan to attend this informative lecture.
February 29, 2016 - "Ancient Landscapes of the American Southwest" for the La Paz Country Library as part of the Arizona Humanities Speakers Bureau. 1 PM. Free.
September 27, 2016 - I will be giving a talk at the Annual Meeting of the Geological Society of America in Denver Colorado. The title of my talk is: EARTH-BASED EDUCATION IN THE CATHEDRAL OF TIME: STRATEGIES LEARNED WHILE WORKING AS A GEOLOGIC INTERPRETER IN THE GRAND CANYON. I will report on why many years of encountering young earth creationists in the Grand Canyon.
October 1, 2016 - The Moab River Rendezvous will be held this year at the John Wesley Powell Museum in Green River, Utah. I will be one of the featured speakers. Fee.
More lectures will be added as the year progresses. Check back again.