Railroad survey question

From: gwolfgang@cc.usu.edu

I am working on a project that will map the presettlement vegetation in Northern Utah. I am interested in looking at the rail road surveys for the Golden Spike area. I have been able to locate the initial surveys that explored for a route, but I am interested in viewing the surveys that were done once the line had been selected. Do you know were those surveys would be located for Utah. Thanks,

Greg Wolfgang
Master of Landscape Architecture Candidate
Landscape Architecture and Environmental Planning