The Wright County Historical Society has a fairly new book about the Battle of Hartville during Marmaduke's First Campaign.
I'll have to ask my wife for a link to the site she was looking at this weekend. You'd think Wright County is at the very extreme end of the planet when it comes to use of the internet. The societies web page is useless, and the facebook page didn't look much better. The facebook page for Hartville is nearly laughable, or cute, or something. A trip through town on google earth tells a better story.
She was looking at the WCHS Facebook page. I guess logging in helps to see the stuff I couldn't find earlier.
https://www.facebook.com/pages/Wright-County-Historical-Society/159799320720433
and I just found this interesting site:
http://www.ozarkscivilwar.org/regions/wright
I'm interested in Hartville and Wright County because my wife and I grew up there. My wife's paternal grandparents ran the store at St. George on the map in the link just above, and her maternal grandparents ran a store less than two miles west at High Point (not shown on that map). My uncle and aunt owned a farm at the confluence of Dove Creek and Whetstone Creek under the H in Wright until they passed; that was a productive farm than made them wealthy through 50 years of hard, hard work. Dove Mountain in Wood Township is one of the highest locations in Missouri, but it's not a dramatic rise from the surrounding terrain.
The map is remarkable for the towns it does not show. A string of towns along the south edge follow the railroad; Mountain Grove, then Norwood, Macomb, Mansfield, and Cedar Gap working from the east boundary to the west.