U.S. Geographic Features from MyTopo
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Illinois
Mason County
Lake
River Swale
River Swale
Lake
Mason County · Illinois
Description
The slough extends SW from Chain Lake in the Illinois River valley (US-T121)
Nearby Features
Weiner Swale
Lake · 0.0 mi N
Panther Slough
Gut · 0.6 mi NW
Hickory Island
Island · 0.8 mi NNE
Chain Lake
Lake · 0.8 mi ENE
Little Sangamon River
Stream · 0.8 mi SW
Ash Swale
Gut · 0.8 mi S
Eagle Prairie
Area · 0.8 mi SSW
Hickory Slough
Lake · 0.9 mi NNE
Elm Island
Island · 0.9 mi WNW
Eagle Slough
Gut · 1.0 mi SSW
Data Sources & Attribution
Feature data:
U.S. Geographic Names Information System (GNIS)
– U.S. Geological Survey.
Elevation:
USGS Elevation Point Query Service (EPQS)
.
Topographic basemap:
USGS National Map
.
Quad map thumbnails:
USGS US Topo
.
Watershed boundaries:
USGS Watershed Boundary Dataset (WBD)
.
Protected areas:
USGS Protected Areas Database (PAD-US)
– Gap Analysis Project.
Photos (where shown):
Wikidata
/
Wikimedia Commons
– individual licenses apply.
Printed map ordering:
MyTopo Map Store
.
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