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Illinois-Indiana State Line Boundary Marker
built 1838 and with current city data crediting Office of the United States Surveyor-General, Designated as a Chicago landmark on September 4, 2002. it becomes easier to follow commercial development, architectural branding, and later change at Illinois-Indiana State Line Boundary Marker.
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Quick Take
- Official status: Chicago individual landmark.
- Address: Avenue G, near 103rd St.
- Built: 1838.
- Architect: Office of the United States Surveyor-General.
Email updates for Illinois-Indiana State Line Boundary Marker.
Why It Matters
Illinois-Indiana State Line Boundary Marker prevents commercial development, architectural branding, and corridor and downtown change from floating free of the site itself.
Once that baseline is in place, the site can support deeper work on stewardship, alteration, public memory, and the larger corridor or block around it.
Field Network
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Research Narrative
Landmark Context
Illinois-Indiana State Line Boundary Marker comes into public view at Avenue G, near 103rd St in the Chicago landmark record. The designation record holds onto a construction date of 1838 and credits Office of the United States Surveyor-General. It was designated on September 4, 2002. Illinois-Indiana State Line Boundary Marker can be read through commercial development, architectural branding, and corridor and downtown change without losing sight of the actual site.
Illinois-Indiana State Line Boundary Marker becomes easier to read on site when attention turns to storefront depth, upper-floor expression, and corner treatment, how the facade addresses pedestrian traffic, and later signage, infill, or reuse. That kind of reading often reveals how commercial architecture stayed visible even as the economic life around it changed.
Research Starting Points
Illinois-Indiana State Line Boundary Marker starts to deepen once research reaches trade press and city directories, permit files and assessor records, and historic photographs and newspaper coverage. Those materials are where architecture, use, and later stewardship begin to line up against each other.
Illinois-Indiana State Line Boundary Marker still needs deeper source work, but the landmark record already keeps that work tied to one place.
Public Actions
Campaign / Petition Record
Ordered oldest to newest.
1838
Development
Construction period recorded in city landmark data
by Public record Previous
Chicago's public landmark data records Illinois-Indiana State Line Boundary Marker as built in 1838.
September 4, 2002
Designation
Chicago individual landmark designation
by Public record Previous
City of Chicago designated Illinois-Indiana State Line Boundary Marker as an individual landmark on September 4, 2002.
February 2026
Inventory
City landmark address list and data portal record
by Public record Current
Illinois-Indiana State Line Boundary Marker remains listed in Chicago's public individual-landmark address list and open-data record.
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Open StoryResearch article pages show a recent coverage slice. Paid subscribers can use Signals inside the workspace for longer results and additional follow-up tools around the place.
Sources
Source Trail
City of Chicago Open Data: Individual Landmarks
dataset
Use for address, built date, architect, and point geometry in the city data portal.
Chicago Landmark Address List February 2026
institution
Use for address normalization and cross-checking the city's public landmark list.
Place Snapshot
- Place
- Illinois-Indiana State Line Boundary Marker
- Location
- Avenue G, near 103rd St, Chicago, Illinois
- Coverage
- Exact
Key Facts
- Region
- Chicago, Illinois / Midwest
- Place type
- Commercial Building
- Current status
- Preserved
- Address
- Avenue G, near 103rd St
- Built
- 1838
- Architect
- Office of the United States Surveyor-General
- Designated
- September 4, 2002
Design / Planning Timeline
Office of the United States Surveyor-General
1838
Milestone
Design architect or firm credited in current city landmark data
Use as a starting point for confirming authorship against permits, drawings, and later landmark reports.
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