MCP offers no senior discount but I have in the past bought 50% off seniors day rate for extra MCP days at JH and Snowmass.
With the Max Pass Add-on, Cypress Mtn., North Vancouver, B.C. offered a very low seniors pass price in CDN $ of course and when combined with the add on fee came to less than $500US, when I had one in 2016. I skied 6 Max Pass resorts that year, but never made it to Cypress to use my seniors pass.
Whitefish=free at age 70.(I just turned the free ski age today) @Sibhusky, see you and ski with you for part of the 2019 season.
Red Mtn., B.C.=free at age 75
Whitewater, B.C.=free at age 75
Sun peaks senior pass (age 65+) is about $300 off the $1299CDN adult price.
Belated happy birthday Dano. I read your unofficial guide to sun peaks - excellent guide btw - and we are planing to ski there this winter. I took advantage of the Whitefish super senior pass last winter.