The Mark Borleske Collection is comprised of 212 Union Pacific maps and drawings from the Union Pacific's Seattle, Washington office.

Great Northern Blueprint Number 1290-20-2, Track Profile, Carman, Manitoba, Midland of Manitoba Railway Crossing of Canadian National at Carman, 1906. Other subject categories: Profile

Great Northern Blueprint Number 1326-3-6, Track Profile, Paulin Street to Saint James Junction, 1911. Other subject categories: Profile

Great Northern Blueprint Number 1326-3-4, Track Profile, Paulin Street to Saint James Junction,Approved Filing Profile, undated. Other subject categories: Profile

Great Northern Blueprint Number L-103 PART 2, Milwaukee Road Track Profile, Andover, South Dakota, Milwaukee Road - Andover to Bristol West Bound Main Line, 1915. Other subject categories: Profile

Great Northern Blueprint Number 1206-10-3, Track Profile, Flathead Lake, Montana, Montana & Great Northern Flathead Lake Survey Station 0 to 500 South Line, 1902. Other subject categories: Profile

Great Northern Blueprint Number 1206-10-4, Track Profile, Flathead Lake, Montana, Montana & Great Northern Flathead Lake Survey South Line Station 480 to 770, 1902. Other subject categories: Profile

Great Northern Blueprint Number 1327-39-2, Track Profile, Flood, Montana, Montana Central - Location Line from Flood Siding to Connection with Sand Coulee Branch, 1900. Other subject categories: Profile

Great Northern Blueprint Number 1268-5-3, Track Profile, Bend, Oregon, Profile Oregon, California and Eastern Railway, undated. Other subject categories: Profile

Great Northern Blueprint Number W-41, Track Profile, Oregon, California and Eastern Railway Klamath Falls to Sprague River, 1958. Other subject categories: Profile