Possibly a repeater here. Probably the same as the phone mast already on the map? Investigating in person.

(-): 146.90
(+): 146.370
offset: -0.6 MHz
Call: VE1CDN
Affiliate: Nova Scotia Amateur Radio Association (NSARA)
Commands: MAVCOM Link Codes 138* On 139* Off

Source: https://www.repeaterbook.com/repeaters/details.php?state_id=CA07&ID=29