You can do a search of federal land patents on the Bureau of Land Management GLO website:
The Official Federal Land Records Site
From their website:
"Welcome to the Bureau of Land Management (BLM), General Land Office (GLO) Records Automation web site. We provide live access to Federal land conveyance records for the Public Land States. We also provide image access to more than three million Federal land title records for Eastern Public Land States, issued between 1820 and 1908. Images of Serial patents (land titles issued between 1908 and the mid-1960's) have been added to this web site. Images related to survey plats and field notes, dating back to 1810, are added to the site state-by-state as each state's documents are completed. Due to organization of documents in the GLO collection, this site does not currently contain every Federal title record issued for the Public Land States.
Federal Land Patents
This site offers researchers a source of information on the initial transfer of land titles from the Federal government to individuals. In addition to verifying title transfer, this information will allow the researcher to associate an individual (Patentee, Assignee, Warrantee, Widow, or Heir) with a specific location (Legal Land Description) and time (Issue Date). For the beginner genealogist, we offer these additional resources.
Obtain certified copies of land patents
With our on-line shopping cart, users may request certified copies of land patents electronically or through the mail. To search for land patents, click on Search Land Patents on the menu near the top of the page. A series of pages will guide you through viewing and ordering land patents.
Federal Survey Plats and Field Notes
Survey plats, a recent addition to this web site, were the official survey documentation used when land title was transferred (via a land patent) from the Federal government to individuals. The survey plats are the graphic drawing of the boundaries created by each survey and contain the official acreage used in the legal description of the public lands. Plats are critical historic documents that can help researchers locate the land referenced in a land patent's legal land description (i.e. Meridian, Township, Range, and Section/Block).
New! Field notes are now being added to the web site. Field notes describe the survey performed by the surveyors and in some instances include the names of settlers living in the area surveyed, and a variety of descriptions of land information found at the time of survey.
For more information about surveys, plats, and field notes, start with our overview."