How to lay gravel on top of drain rocks pathway without removing the old layer?

Question

I have a small rock pathway 3′ x 15′, that have lots of weeds and moss. I want to put a layer of gravel on top of it. Can you show me how to do that? Thanks.

Answer 1

This article can help you with the weeds before you lay down the gravel.
https://www.gardeningknowhow.com/plant-problems/weeds/controlling-gravel-weeds.htm

This article should help with the gravel:
https://www.gardeningknowhow.com/garden-how-to/projects/diy-mosaic-pebble-pathway.htm