Humboldt River main stem, Nevada

These data were released prior to the October 1, 2016 effective date for the USGS’s policy dictating the review, approval, and release of scientific data as referenced in USGS Survey Manual Chapter 502.8 Fundamental Science Practices: Review and Approval of Scientific Data for Release. This data set contains the main stem of the Humboldt River as defined by Humboldt Project personnel of the U.S. Geological Survey Nevada District, 2001. The data set was digitized on screen using digital orthophoto quadrangles from 1994.

本数据集发布于美国地质调查局（U.S. Geological Survey, USGS）规范科学数据审核、批准与发布流程的政策生效之日（2016年10月1日）之前，该政策详见《美国地质调查局手册第502.8章：基础科学实践：科学数据发布的审核与批准》。本数据集包含由美国地质调查局内华达分局洪堡项目团队于2001年界定的洪堡河干流。该数据集基于1994年的数字正射影像图（digital orthophoto quadrangles）完成屏幕数字化作业。