Garmin Astro 220 Owner's Manual page 26

2. Move the arrow to the point you want to measure from
and press ENTER. A push pin marks the point.
3. Move the arrow to another point. The distance
between the two points is shown in the upper-right
corner of the Map page.
End point of
measurement
labeled REF
Astro Dog Tracking System Owner's Manual
Measured
distance
Push pin
indicating the
beginning
point of the
measurement
Map Page