If my readers recall, I did a post about Volcanoes in Georgia, specifically Pigeon Mountain. After a number of comments from geologists, I learned it wasn’t a volcano. However, I still wanted to visit the mountain and see things for myself. Although I didn’t doubt the experts, it’s always good to verify information. Nothing beats learning new things!
Tennessee Heartwood:
Imagine my surprise when I received a comment from Tennessee Heartwood telling me they planned an excursion with a geologist to visit Pigeon Mountain. First, let me tell you about Tennessee Heartwood. It’s a 501c3 organization dedicated to the preservation of Tennessee’s public lands heritage. Their efforts include the Cherokee National Forest and Land Between the Lakes NRA. The Cherokee National Forest is a huge forest tract in Tennessee. it joins other national forests in Virginia, North Carolina, and Georgia (the Chattahoochee National Forest).
Anyway, I jumped at the chance to see the mountain and talked my brother into going. We got up early and hit the road since it’s about a two and a half hour drive to get there from our part of Georgia. We had a great time riding through the mountains and seeing the dawn break. Beautiful drive! I can truthfully say there are some wide open spaces between Gainesville, GA and the Pigeon Mountain Grill just outside of Lafayette, GA! If you get the chance, take a ride through the area.
Pigeon Mountain Area:
We joined the rest of the group and discovered we couldn’t actually go on the mountain since we didn’t have either a hunting or fishing license. Pigeon Mountain is a Georgia Wildlife Management Area (WMA) and you can’t visit it without one of the licenses. Nonetheless, we went all around the mountain and thoroughly enjoyed our discussions with our geologist tour guide Jay. Jay grew up around Pigeon Mountain and provided a wealth of knowledge about the different geologic periods. In addition, he explained in simple terms and how the mountain formed. And yes, he confirmed that Pigeon Mountain isn’t volcanic.
Pigeon Mountain is part of the Cumberland Plateau and there is a ton of limestone up there. Limestone erosion caused the deep pits (like Ellison’s Cave and Petty John’s Cave) in the mountain. If you’re familiar with sinkholes in Florida, it’s a similar process. All told, Jay gave us an entertaining and educational day. We found fossils, learned about chert (which can be fashioned into tools), sandstone, and limestone. We also saw first hand evidence of the different geologic periods present in the area.
Although I confirmed first hand that Pigeon Mountain wasn’t volcanic, I was still disappointed. In addition, I discovered there aren’t any gemstones native to the area. Bigger disappointment! Fun place to visit, but I’ll stick to my Northeast Georgia Mountains and hunt gemstones and prospect for gold!
Connect with me:
Find me on Twitter, Facebook, Goodreads, or Pinterest and tell me what you think about Pigeon Mountain. You can leave a comment. Lastly, email me at bill@williamlstuart.com. I look forward to hearing from you!
Excellent!. I even wish it was a volcano, because I have to go to Costa Rica or Japan to visit a smoking mountain that can go BOOM!.
Now send this to Richard Thornton, the People of One Fire guy.
He is still adamant about his belief that Pigeon Mountain in Walker County is a volcano. Sadly, Any search on the Internet on Pigeon Mountain lists his site first, and I have had lot of people from our County contact me about the veracity of his claims.
Pigeon mountain blew ash and smoke complete with sulphuric gas in 1857. The mountain is nearly hollow, honey combed on the inside. It consists of 5 extinct and obe dormant volcanoes complete with a caldera. The geology report from 1937 is a complete survey of the fault and paleozoic rock with other rock thrust over it and so on. Diamonds are believed to be in the tubes deep under ground. It has carboniferous content. Read the report ho down in the caldera and check it out. It was documented in an article in the New Yourk times when it last erupted in 1857, June 20 spewing ash and sulphuric gas into the air. Locals had to evacuate the area.
Hi Tammy,
I’ve read about the 1857 event, but have not been able to corroborate it with any local papers such as those in Chattanooga. I visited the mountain with a geologist and he confirmed it wasn’t volcanic in nature. I also recently exchanged emails with Dr. Amy Brock-Hon, a geology professor at UT-Chattanooga. Here is her explanation of Pigeon Mountain:
I’m happy to discuss the geology of Pigeon Mountain, GA. Spoiler alert…it’s not a volcano. Although from Chattanooga, it certainly does look like the shape of a volcano, no volcanic processes were involved in its formation. This shape occurs simply because of erosion and the perspective of the viewer. The rocks of Pigeon Mountain are a sequence of sedimentary rocks starting at limestones at the base and moving up to sandstones and conglomerates at the top. After these rocks formed, the rocks of the region were crunched up during a significant mountain building events towards the east. This caused the rocks of Pigeon Mountain to also get bent slightly into something we call a syncline (concave up fold) which has influenced how it has eroded over time. Pigeon Mountain has very similar geology to Lookout Mountain and Walden’s Ridge. It is a great place for caves (because of the limestones) and it also is a great place to view a sequence of rocks deposited millions of years ago from when the area was under the ocean and recording when it shallowed into an above sea level delta setting with large river systems (you can find plant fossils up in the sandstones and conglomerates).
As I’m not a geologist (yet, though I plan to go back to school and get a geology degree), I have to defer to those who are and I accept their assertion that Pigeon Mountain is not volcanic.