Geologic Maps Foundation, Inc.

The Geologic Maps Foundation (GMF) recently added several more geologic maps to it web page library, including Santa Rosa Island, California. GMF has now uploaded 258 geologic maps (mostly 7.5' quads, 1:24,000 scale) from southern and central California to the GMF web page.

Maps are free to download and are high-resolution .pdf files, https://geologicmapsfoundation.org/geologic-maps/

The maps are helpful to those curious about the geology of California and the geologic mapping is overlain on an updated topographic and road base map.

We are raising money mid-year 2025 to benefit the GMF. A donation will help grow our geological mapping and educational efforts. GMF is an IRS designated 501 3c nonprofit and registered with the California State AG's office, https://oag.ca.gov/charities

The original field mapping was done by Thomas W. Dibblee Jr. from the late 1930s to early 2000. Thomas L. Davis Geologist and staff digitized the original mapping in various GIS software over the last decade, and recently donated the .pdf copies to the Foundation.

We have no employees (it's an all-volunteer effort). We occasionally hire GIS (Geographical Information Systems) experts and other map making consultants on a temporary basis to help us with our map preservation efforts.

Our educational efforts include Geo-hikes: Check out the Meetup link to see all the Geo-hikes we've run so far 2025 and in earlier years (click on the events tab and choose past or upcoming):

https://www.meetup.com/https-www-meetup-com-geo-hikes/

An additional GMF educational effort is presentations to local nonprofit organizations and geologic commentary on substack.com Here are links to the last few:

A five part series on the March 28, 2025 Myanmar earthquake and its impact, starting with "Earthquake Tears Through Myanmar, leaving military and political uncertainty..." https://www.meetup.com/https-www-meetup-com-geo-hikes/events/308195912

A Geologic Tour of Ojai Valley and Environs (OVE), https://www.meetup.com/https-www-meetup-com-geo-hikes/events/307488267/?eventOrigin=group_calendar

A Geologic Tour of Ojai Valley and Environs (OVE), California,

https://www.meetup.com/https-www-meetup-com-geo-hikes/events/307488267

Geology of the Ventura Hills, California, https://www.meetup.com/https-www-meetup-com-geo-hikes/events/307187981/?eventOrigin=group_calendar

Sri Lanka’s underappreciated geologic asset: developing its natural gas resource, https://www.meetup.com/https-www-meetup-com-geo-hikes/events/304218859/?eventOrigin=group_calendar

Geology of the Conejo Open Space Foundation (COSF), https://www.meetup.com/https-www-meetup-com-geo-hikes/events/302970801/?eventOrigin=group_calendar

Your donation will allow us to continue our map making and geologic education efforts.

Thanks,

Thom Davis

President and CEO

Geologic Maps Foundation. Inc.

We are raising money at the end of 2024 to benefit the Geologic Maps Foundation, Inc. (GMF). A donation will help make an impact. End of 2024 donations will support our operational costs at the end of 2024 and going forward in 2025.

We've recently uploaded .pdf files of +250 geologic maps (mostly 7.5' quads, 1:24,000 scale) from southern California to the Geologic Maps Foundation, Inc. web page. The original field mapping was done by Thomas W. Dibblee Jr. from the late 1930s to early 2000. Thomas L. Davis Geologist and staff digitized the original mapping in various GIS software over the last decade, and recently donated the .pdf copies to the Foundation. The .pdf maps are available for free at the Geologic Maps Foundation web page, https://geologicmapsfoundation.org/geologic-maps/

We have no employees (it's an all-volunteer effort)* and all donations support running the Geo-hikes educational events (https://www.meetup.com/Geo-hikes/), our outdoors & geologic educational efforts (map and compass courses, basic geologic field methods, field trips, and our K-12 map literacy project), our preservation efforts of difficult-to-find, unpublished, and out-of-print geologic maps to our web page for all to access, and informing the public and policy-makers about energy issues and the important role of geology in energy through scientific publications and articles.

GMF is an IRS designated 501 3c nonprofit and registered with the California State AG's office, https://oag.ca.gov/charities

Check out the Meetup link to see all the great Geo-hikes we've run so far 2024 and in earlier years (click on the events tab and choose past or upcoming):

https://www.meetup.com/https-www-meetup-com-geo-hikes/

Sampling of other Geologic Maps Foundation efforts in 2024:

Here's a link to a recent presentation given to the Conejo Open Space Foundation on the geology along select trails in the western Santa Monica Mountains and nearby;

https://cosf.org/news/dr-thom-davis-reveals-the-conejo-valleys-explosive-geologic-history-see-the-recording-here/

Sri Lanka’s underappreciated geologic asset: developing its natural gas resource. Presentation given to the Coast Geologic Society

December 17, 2024, 6:00pm

https://www.linkedin.com/posts/thomas-l-davis-pg-phd-575984b0_sri-lankas-underappreciated-geologic-asset-activity-7274966371292065792-wg9e?utm_source=share&utm_medium=member_desktop

In July 2024, Thomas L. Davis, CEO at GMF wrote an article bringing together Sri Lanka's energy need, economic issues, and its natural gas resources:

https://thediplomat.com/2024/07/sri-lankas-underappreciated-asset-offshore-lng/

Sampling of other Geologic Maps Foundation efforts:

Some short videos of our Geo-hikes and field geology educational efforts:

https://www.youtube.com/@thomasldavisgeologist61

In 2022 we’ve added a substack.com newsletter describing some of our Geo-hikes with short videos and occasional articles on energy issues. The newsletter is free and can be reached here: https://tdavisgeo.substack.com/

*We occasionally hire GIS (Geographical Information Systems) experts and other map making consultants on a temporary basis to help us with our map preservation efforts.

We are raising money at the end of 2023 to benefit the Geologic Maps Foundation, Inc. (GMF). A donation will help make an impact. End of 2023 donations will support our operational costs at the end of 2023 and going forward in 2024.

We have no employees (it's an all-volunteer effort) and all donations support running the Geo-hikes events (https://www.meetup.com/Geo-hikes/), our outdoors & geologic educational efforts (map and compass courses, basic geologic field methods, field trips, and our K-12 map literacy project), our preservation efforts of difficult-to-find, unpublished, and out-of-print geologic maps to our web page for all to access, and informing the public and policy-makers about energy issues and the important role of geology in energy through scientific publications and articles.

Check out the Meetup link to see all the great Geo-hikes we ran in 2023 and what we have planned so far for 2024 (click on the events tab and choose past or upcoming).

Some short video sample of some our Geo-hikes in 2023

https://youtu.be/S8BpO8zJUc8

https://youtu.be/8Wjvd914F-k?si=zQxhjtb02sOkySJ4

https://youtu.be/ajZuDBmLRps

In 2022 we’ve added a substack.com newsletter describing some of our Geo-hikes with short videos and occasional articles on energy issues. The newsletter is free and can be reached here: https://tdavisgeo.substack.com/

We are raising money at the end of 2022 to benefit the Geologic Maps Foundation, Inc. (GMF). A donation will help make an impact. End of 2022 donations will support our operational costs at the end of 2022 and going forward in 2023. We have no employees (it's an all-volunteer effort) and all donations support running the Geo-hikes events (https://www.meetup.com/Geo-hikes/), our outdoors & geologic educational efforts (map and compass courses, basic geologic field methods, field trips, and our K-12 map literacy project), our preservation efforts of difficult-to-find, unpublished, and out-of-print geologic maps to our web page for all to access, and informing the public and policy-makers about energy issues and the important role of geology in energy through scientific publications and articles. Check out the Meetup link to see all the great Geo-hikes we ran in 2022 and what we have planned so far for 2023 (click on the events tab and choose past or upcoming).

In 2022 we’ve added a substack.com newsletter describing some of our Geo-hikes with short videos and occasional articles on energy issues. The newsletter is free and can be reached here: https://tdavisgeo.substack.com/

Thanks in advance for your contribution to this cause that means so much to us. More information about Geologic Maps Foundation, Inc. at:

http://www.geologicmapsfoundation.org/

We are raising money at the end of 2022 to benefit the Geologic Maps Foundation, Inc. (GMF). A donation will help make an impact. End of 2022 donations will support our operational costs at the end of 2022 and going forward in 2023. We have no employees (it's an all-volunteer effort) and all donations support running the Geo-hikes events (https://www.meetup.com/Geo-hikes/), our outdoors & geologic educational efforts (map and compass courses, basic geologic field methods, field trips, and our K-12 map literacy project), our preservation efforts of difficult-to-find, unpublished, and out-of-print geologic maps to our web page for all to access, and informing the public and policy-makers about energy issues and the important role of geology in energy through scientific publications and articles. Check out the Meetup link to see all the great Geo-hikes we ran in 2022 and what we have planned so far for 2023 (click on the events tab and choose past or upcoming).

In 2022 we’ve added a substack.com newsletter describing some of our Geo-hikes with short videos and occasional articles on energy issues. The newsletter is free and can be reached here: https://tdavisgeo.substack.com/

Thanks in advance for your contribution to this cause that means so much to us. More information about Geologic Maps Foundation, Inc. at:

http://www.geologicmapsfoundation.org/