Brent,
The RRC Public GIS Viewer Mapping System is very helpful with locating Sections, Abstracts, and Blocks.
http://wwwgisp.rrc.state.tx.us/GISViewer2/
For locating county plats you may need to contact the Crane County Clerks Office and can possibly purchase a map from the County.
http://www.co.crane.tx.us/default.aspx?Crane_County/County.Clerk
Clint Liles