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Charles Mound Coordinates

Illinois, United States · Elevation 376m

Quick answer: Charles Mound is located at 42.500000, -90.240600 (N, W).

Different tools require different formats — Garmin devices default to DDM, military maps use MGRS, topo maps use UTM, and web apps expect Decimal Degrees. Copy whichever format your device or application needs. Click any format abbreviation to learn how it works.

All Coordinate Formats

DD

Decimal Degrees

42.500000, -90.240600
DMS

Degrees Minutes Seconds

42°30'0.00"N 90°14'26.16"W
DDM

Degrees Decimal Minutes

42°30.0000'N 90°14.4360'W
UTM

Universal Transverse Mercator

15T 726737 4708983
MGRS

Military Grid Reference

15TYH2673708983
Geohash

Geohash Encoding

9zxcf8bu3
Plus Code

Open Location Code

86JFGQ25+52

Map Location

Map data © OpenStreetMap contributors

Antipodal Point

The point on the exact opposite side of Earth from Charles Mound. If you drilled straight through the planet's center, you would emerge here.

Antipodal coordinates

-42.500000, -90.240600

Hemisphere: S, W

DD

Decimal Degrees

-42.500000, -90.240600
DMS

Degrees Minutes Seconds

42°30'0.00"S 90°14'26.16"W
DDM

Degrees Decimal Minutes

42°30.0000'S 90°14.4360'W
UTM

Universal Transverse Mercator

15G 726737 5291017
MGRS

Military Grid Reference

15GYN2673791017
Geohash

Geohash Encoding

3bry4x0g9
Plus Code

Open Location Code

469FGQ25+52

MGRS Decoded

MGRS encodes location as a nested hierarchy — zone, band, grid square, and offsets. Here is what each component of 15TYH2673708983 means.

Component Value Meaning
UTM Zone 15 One of 60 vertical slices of Earth (6° wide each). Zone 15 runs -96° to -90° longitude.
Latitude Band T One of 20 horizontal bands (8° tall each), lettered C–X (skipping I and O). Indicates the general latitude region.
100 km Square YH A 100 × 100 km grid square within the zone/band. Column letter Y (west–east) and row letter H (south–north).
Easting 26737 Distance east within the 100 km square. 5-digit value = 10 m resolution. Multiply by 1 to get meters.
Northing 08983 Distance north within the 100 km square. Same resolution as easting (10 m).

Geohash Precision

A geohash encodes coordinates by subdividing the Earth into progressively smaller cells. Each extra character roughly halves the cell area. The table below shows Charles Mound's geohash at every precision level alongside the bounding box each level represents.

Length Geohash Cell Size
1
9
≈ 5,000 × 5,000 km
2
9z
≈ 1,250 × 625 km
3
9zx
≈ 156 × 156 km
4
9zxc
≈ 39 × 20 km
5
9zxcf
≈ 4.9 × 4.9 km
6
9zxcf8
≈ 1.2 km × 610 m
7
9zxcf8b
≈ 153 × 153 m
8
9zxcf8bu
≈ 38 × 19 m
9
9zxcf8bu3
≈ 4.8 × 4.8 m

Precision 9 (highlighted) is the default and provides sub-5-metre accuracy for most applications.

About Charles Mound

Charles Mound is the highest natural point in Illinois at 1,235 feet (376 m). It is located in Jo Daviess County near the Wisconsin border and is accessible only on certain weekends.

Live Converter

The coordinates above are fixed to this landmark. Use this converter to enter any other coordinates — such as a nearby trailhead, parking area, or a location you want to compare — and get all 7 formats instantly.

DD

42.500000, -90.240600

DMS

42°30'0.00"N 90°14'26.16"W

DDM

42°30.0000'N 90°14.4360'W

UTM

15T 726737 4708983

MGRS

15TYH2673708983

GH

9zxcf8bu3

OLC

86JFGQ25+52

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