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Pylon Plans

Not specified 613586

Crystal Lake, Illinois · McHenry County

Overall height
131 m (429 ft)
Rank in IL
215th
of 5,157
Constructed
1985
41 years ago
Radio horizon
47 km (29 mi)
estimate

Overview

The FCC lists structure 613586 in Crystal Lake, IL as a structure. Overall height above ground is 131 m, or 429 ft.

Locally it is the 2nd tallest of 25 registered structures in Crystal Lake, IL.

FCC records list Mchenry County College as the registered owner of this structure.

Height sets an upper bound on reach: about 47 km (29.3 mi) to the radio horizon for equipment mounted at the top. This is a theoretical maximum over flat ground and says nothing about signal strength.

The closest other registered structure is 130 m to the WSW. In total there are 13 other registered structures within 5 km.

Its county accounts for 124 of the 5,157 structures registered across Illinois.

Location

Coordinates
42.25833, -88.36333

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Registration record

as filed with the FCC
FCC registration 613586
Structure type Not specified
Overall height (AGL) 131 m (429 ft)
Height above sea level 414 m (1,359 ft)
Constructed 1985
Date on record 1 Dec 1985
Coordinates 42.25833, -88.36333
County McHenry County
Registered owner Mchenry County College
Owner type Other

How it compares

calculated from the full national dataset
Height rank in Illinois 215th of 5,157 taller than 95.8%
Height rank in Crystal Lake 2nd of 25
Height rank in county 2nd of 124
Median not specified in Illinois 65 m (214 ft) +101% vs median
Radio horizon (estimate) 47 km (29 mi) theoretical maximum, flat terrain
Other structures within 5 km 13

Nearest registered structures

north is up
0.4 mi 0.8 mi 1.2 mi Not specified — 130 m WSW Tower — 141 m NNE Not specified — 185 m NE Pole — 1.0 km (0.6 mi) NNW Monopole — 1.9 km (1.2 mi) ESE
Distance Bearing Type Height ASR
130 m WSW Not specified 90 m (295 ft) 105746
141 m NNE Tower 152 m (499 ft) 127786
185 m NE Not specified 90 m (295 ft) 613585
1.0 km (0.6 mi) NNW Pole 61 m (199 ft) 2612783
1.9 km (1.2 mi) ESE Monopole 60 m (197 ft) 2626359

About this record

This page summarises FCC ASR record 613586, from the weekly file dated 2026-08-23. Rankings and comparisons on this page are calculated by Pylon Plans from the full national dataset, not supplied by the FCC.

"Owner" is the entity that registered the structure, usually a tower company such as American Tower or Crown Castle. It does not indicate which carriers operate equipment on the structure.