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Description

Finely detailed map of Oregon and Washington, prepared in connection with the US Pacific Railroad Surveys.

From the surveys of Williamson and Abbot, this map covers the region from the Siskoyou Range and Klamath Lakes north to above the Columbia River. Finely engraved with topographical and watershed detail including fine hachure throughout the mountainous area. The Emigrant Road, unexplored regions, various routes of the surveying parties, the historical routes of Fremont and Warner, and the first settlements are identified. The Three Sisters, Mount Hood, Mt. Jefferson, Diamond Peak, John Mule Mountain and more are located .

The map provides a fine overview of the exploration and surveying of this region up to 1855, in connection with the US Goverment's attempt to locate the most practicable routes for the transcontinental railway.

The note on the map shows the trails of the main command, and the trails of the detachments led by Williamson and Abbot.

The note also includes a liste of sources, including:

  • Williamson's map of California
  • Fremont's map of Oregon & Upper California
  • General Land Office Maps
  • US Coast Survey Maps
Condition Description
Minor toning at folds.