Great Northern Blueprint Number 1254-36-1, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-6, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-8, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-9, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-10, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-11, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-2, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-3, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-5, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map

Great Northern Blueprint Number 1254-36-12, map of Colville River Drainage Project, Valley to Arden, 1906. Other subject categories: Map