Yellowstone Buffalo
You can join Buffalo Field Campaing and/or find out how you can help by contacting Buffalo Field Campaign at: buffalo@wildrockies.org
When you contact them, please also ask about the Tabling events at Yellowstone National Park and where they will be located and when they will take place.
The tabling events will provide you with the information you will need to know and you can also talk directly with a representative of Buffalo Field Campaign.
I hope you will find this information helpful. Let me know if I can be of further assistance.