I would believe many soldiers enlisted in their home counties and first mustered into their assigned regiments where ever they
were located at the time.
Sugar Creek Township is one of twenty-five townships in Barry County, Missouri, United States.
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The Civil War Soldiers and Sailors System gives the following as the history for this regiment: 11th Infantry Regiment [also called 2nd Regiment], formerly Burns' 8th Regiment, was organized during the winter of 1863-1864. It disbanded early in 1865.[1]
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
Company A - Captain James Phillips, Captain John L. Gibson, Captain Casper Headrick - enrolled Jasper County, Missouri
Company B - Captain Joseph G. Peevey (Peacey), Captain William McBride - enrolled Crawford County, Missouri
Company C - Captain John S. Herriford, Captain William Trower - enrolled Barry County, Missouri
Company D - Captain Elbert S. Feaster - enrolled Cedar County, Missouri
Company E - Captain William M. Lowe, Captain James McKill, Captain James P. Massey - enrolled McDonald County, Missouri
Company F - Captain David C. Howard - enrolled McDonald County, Missouri
Company G - Captain Morris W. Mitchell - enrolled Barry County, Missouri
Company H - Captain Jackson Cooper, Captain Benjamin F. Davis, Captain John P. Quesenberry - enrolled Ft. Smith, Arkansas
Company I - Captain Amos S. Bradley - enrolled Barry County, Missouri
Company K - Captain Bennett G. Johnson - enrolled Jasper County, Missouri
https://familysearch.org/learn/wiki/en/11th_Regiment,_Missouri_Infantry_-_Confederate