Humboldt Co. Land Grants
This will be an ongoing project of retrieving the Humboldt County Land Grants from the Bureau of Land Management and having the land grants housed permanently on Humboldt County IAGenWeb.  The first section completed is listed as 1850-1855 but there are no land grants previous to 1855 as I have searched by township and range in the state prior to that time. 

Land Grants

1859 began a huge land rush so it will be done by quarter year or monthly if necessary.

The Land Grant office begins at Fort Des Moines in the earliest times and moves to Fort Dodge. 
The following are the townships of pre 1900. Corinth now lies where Springvale did except that Springvale does have a tiny bit south of Humboldt City. I have included the major town within the townships.