Heading west to work on several books including the newest National Parks (Gateway Arch and Indiana Dunes), Theodore  Roosevelt, and others on this adventure.   Please stop by Fort Union Trading Post and see me this summer.  I will be providing tours as a National Park Interpretive Ranger, which will be exciting work at an 1800 era fur trading company outside of Williston, North Dakota.

We visited the Gateway Arch National Park in St. Louis, MO on our trip to North Dakota.   Had a great time on the visit to one of the newest National Parks.   On our return trip we will be visiting the 61st National Park at Indiana Dunes in northern Indiana. 

The answer can be found in the link below.  It provides 2018 visitation statistics for all National Parks by month and busy months can be easily identified in bold. 

https://www.nationalparkplanningguides.com/planning-info.html