Blue lines show hypothesised

surface drainage lines based on

contour data (red lines) from 1853 plans

Elizabeth Street

estimated location of

“Lonsdale swamp / Lake Lonsdale”

Spring Street

Lonsdale Street

Bourke Street

“rain course” marked

in Hodgkinson plan

Swanston Street

“open drain” marked

in Hodgkinson plan

“rain course” marked

in Hodgkinson plan

Spencer Street

areas marked

“impassable slough, April 1853”

in Hodgkinson plan

Graphic: MARK STEHLE Source: HERITAGE COUNCIL OF VICTORIA / ALLIANCE ARCHAEOLOGY

Blue lines show hypothesised surface

drainage lines based on contour data

(red lines) from 1853 plans

Elizabeth Street

estimated location of

“Lonsdale swamp / Lake Lonsdale”

Spring Street

Lonsdale Street

Bourke Street

“rain course” marked

in Hodgkinson plan

Swanston Street

“open drain” marked

in Hodgkinson plan

“rain course” marked

in Hodgkinson plan

Spencer Street

areas marked

“impassable slough, April 1853”

in Hodgkinson plan

Graphic: MARK STEHLE Source: HERITAGE COUNCIL OF VICTORIA / ALLIANCE ARCHAEOLOGY

Blue lines show hypothesised surface

drainage lines based on contour data

(red lines) from 1853 plans

estimated

location of

“Lonsdale swamp /

Lake Lonsdale”

Elizabeth St

Lonsdale Street

Bourke Street

areas marked

“impassable slough, April 1853”

in Hodgkinson plan

Graphic: MARK STEHLE

Source: HERITAGE COUNCIL OF VICTORIA /

ALLIANCE ARCHAEOLOGY