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| 1964-dec | Ordered |  LCC-19 USS Blue Ridge | |
| 1966-aug | Ordered | LCC-20 USS Mount Whitney | |
| 1967-feb-27 | Laid down | LCC-19 USS Blue Ridge | |
| 1969-jan-4 | Launched | LCC-19 USS Blue Ridge | |
| 1970-nov-14 | Commissioned | LCC-19 USS Blue Ridge | |
| 1971-jan-16 | Commissioned | LCC-20 USS Mount Whitney | |
| 1973-may-26 | Port Visit | LCC-20 USS Mount Whitney 26-29 May visit Malaga, Spain | |
| 1973-jun-16 | Port Visit | LCC-20 USS Mount Whitney 16-19 June visit Cannes, France | |
| 1986-oct-4 | Deployment | LCC-19 USS Blue Ridge  Fleet Review: 75th anniversary of RAN Present at 75th anniversary of the RAN Fleet Review | |
| 1990-sep-1 | Deployment | LCC-19 USS Blue Ridge Operation Desert Shield/Storm from Sep90 to Mar91 | |
| 2000-mar | Aircraft | LCC-19 USS Blue Ridge Persian Gulf for Operation Southern Watch with Sea King 152704 | |
| 2002-mar-24 | Port Visit | LCC-20 USS Mount Whitney 24-27 March visit Rotterdam, Netherlands. Embarked Sea King 148052 : 149899 | |
| 2002-nov | Deployment | LCC-20 USS Mount Whitney stood off Djibouti, as the Command Ship of the newly formed Combined Joint Task Force-Horn of Africa until it moved ashore to Camp Lemonnier in May 2003. | |
| 2010-mar-15 | Port Visit | LCC-20 USS Mount Whitney , France up to 19mar10 | |
| 2010-may-28 | Port Visit | LCC-20 USS Mount Whitney 28 - 30 May visit to Portsmouth, England | |
| 2010-jun-4 | Port Visit | LCC-20 USS Mount Whitney 4 - 6 June visit to Gdynia, Poland | |
| 2010-jun-7 | | LCC-20 USS Mount Whitney BALTOPS 10 participated with BALTOPS 10 | |
| 2010-jun-18 | Port Visit | LCC-20 USS Mount Whitney 18 - 21 June visit to Kiel, Germany to participate in Kieler Wocke. | |
| 2010-jun-24 | Port Visit | LCC-20 USS Mount Whitney 24-27 June visit to Ventspils, Latvia MH-60S (Ghostrider 41) onboard 166322 as HSC-28 Det1 | |
| 2010-jul-3 | Port Visit | LCC-20 USS Mount Whitney 3+4 July participated with Fleet Days Zeebrugge Belgium. On board SH-60 166322. | |
| 2010-jul-8 | Port Visit | LCC-20 USS Mount Whitney 8 - 11 July visit to Faslane, Scotland | |
| 2010-jul-17 | Port Visit | LCC-20 USS Mount Whitney Based in HMNB Devonport for a week during Exercise FRUKUS 10, rehearsing Disaster Relief operations with Royal Navy, French and Russian Navies. | |
| 2010-aug-9 | Port Visit | LCC-20 USS Mount Whitney 9-15 August visit and ship repair to Lisbon, Portugal. MH-60S (Ghostrider 41) 166322 underwent Phase B maintenance | |
| 2010-aug-25 | Port Visit | LCC-20 USS Mount Whitney 25-28 August visit Amsterdam Netherlands | |
| 2010-sep-7 | Port Visit | LCC-20 USS Mount Whitney 7-9 September visit to Rostock, Germany | |
| 2010-sep-11 | Port Visit | LCC-20 USS Mount Whitney 11-14 September visit to Klaipeda, Lithuania | |
| 2011-mar | Deployment | LCC-19 USS Blue Ridge Operation Tomodachi - Tohoku Earthquake Relief Contributed to Earthquake and Tsunami relief operations off Japanese east coast. | |
| 2011-mar-19 | Deployment | LCC-20 USS Mount Whitney flagship for Operation Odyssey Dawn against Libya | |
| 2013-jul-15 | Deployment | LCC-19 USS Blue Ridge Talisman Saber 2013 15jul13 embarked HSC-12 H-60 168534 | |
| 2014-mar-12 | Port Visit | LCC-19 USS Blue Ridge visit Hong Kong | |
| 2014-jun-6 | Deployment | LCC-20 USS Mount Whitney BALTOPS 14 participated with BALTOPS 2014 embarked MH-60S 167898 HSC-28 | |
| 2014-oct-23 | Deployment | LCC-20 USS Mount Whitney joint operations with the Romanian Navy in the Black Sea. | |
| 2015-jul-7 | Deployment | LCC-19 USS Blue Ridge Talisman Sabre 2015 participated in Exercise Talisman Sabre 15. | |
| 2015-oct | Deployment | LCC-20 USS Mount Whitney Exercise Trident Juncture 2015 participated in multi-national NATO Maritime Command exercise, until Nov 2015 | |
| 2019-feb | Aircraft | LCC-19 USS Blue Ridge East China Sea with Coast Guard MH-65 6540 | |
| 2019-jun-9 | Deployment | LCC-20 USS Mount Whitney BALTOPS 19 embarked Expeditionary Strike Group 2 command team aboard, as flagship for the Exercise. HSC-28 Det 1 also embarked. | |
| 2020-jan-25 | Aircraft | LCC-19 USS Blue Ridge MH-60S Seahawk 167832 accident 180km E off Okinawa, Japan | |
| 2020-feb-19 | Port Visit | LCC-20 USS Mount Whitney La Valletta | |
| 2022-mar-5 | Port Visit | LCC-20 USS Mount Whitney visiting Portland Harbour, in preparation for participation in Exercise Cold Response 22. | |
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