[3] This rifle regiment occupied the now-abandoned Fort Lee at Wascopum (now The Dalles) on the Columbia River.

[6] When the United States Congress changed the land requirements for Army forts to 1 square mile (2.6 km2) from 10 square miles (26 km2), suddenly Camp Drum's tiny military contingent could control the land it required.

[10] The Fort Dalles Museum is located in the surgeon's quarters built in 1856 during the Yakima Wars, and the only remaining officer's house from that period.

Exhibits include arrowheads, military and pioneer artifacts, period antiques and photographs, tools, weapons, saddles, and information about the fort.

The Fort Dalles Surgeon's Quarters is listed in the National Register of Historic Places.