We never get sick of checking out some old convict relics, and this one is a great example along the Convict Trail.
This stone culvert, built in 1830, is an integral part of the Great North Road described at that time by Surveyor General Major Thomas Mitchell as "the most elaborate work in the colony".
This culvert with its drainage arch is a fine section of masonry. Stones were dressed to given dimensions, a smooth curved face was formed with tight bedding and even horizontal coursing with perpendicular joints, then fitted without mortar. It is a testament to the tenacity and skill of all involved.
You can park behind the culvert, for safe exploring and searching. The cache is a micro with pencil and logsheet in a more small-sized housing, should be an easy find.