The Prince of Wales and the Duchess of Cornwall will pay tribute to Wales' coal mining and farming past as they continue their summer tour.
It's the fourth day of their visit. Senghenydd and Usk are on their itinerary.
The Royal couple will lay a wreath at the Welsh National Mining Memorial in Senghenydd, which was unveiled last year.
The Duchess of Cornwall will also tour a number of locations in Usk to celebrate the 50th anniversary of the 'Britain in Bloom' competition, now run by the Royal Horticultural Society.
Despite the fact that Usk only has a population of c.2000, it has around 90 clubs and societies.
Some focus their efforts on making the town look its best through the RHS Britain in Bloom campaign.
The town's competition effort is paid for from public fundraising.
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