User Guide

Garmin G1000 Pilot’s Guide Appendices 190-00383-01 Rev. A
F-4
APPENDIX F
OBSTACLE DATABASE
Obstacle
Color
Indication
RED
WARNING: Obstacle height is at or above 100’ below the current
aircraft altitude.
YELLOW
CAUTION: Obstacle height is between 100’ and 1000’ below the
current aircraft altitude.
GRAY
SAFE: Obstacle height is lower than 1000’ below the current aircraft
altitude.
Unlighted Obstacle
(Height is less than
1000’ AGL)
Lighted Obstacle
(Height is less than
1000’ AGL)
Unlighted Obstacle
(Height is greater than
1000’ AGL)
Lighted Obstacle
(Height is greater than
1000’ AGL)
TERRAIN COLOR CHART
1000' AGL
Aircraft Altitude
100' Threshold
Figure F.1 Terrain Color Chart