Yumari means mother in-law. The country and Tiukurrpa of Yumari describes an avoidance story between a married man and his mother in-law.

During the Tjukurrpa, there was a Nungala woman who was caring for a younger Tjakamarra man. The two made love, however the woman was the man's mother-in-law. Culturally it is highly forbidden for a mother in-law and son in-law to have any direct or indirect contact. Knowing the trouble that he was in, Tiakamarra fled, as there would be harsh consequences for his actions. As he fled. he lit up the country with fire so that it would be hard to follow him. Tjakamarra headed about 20kms away to some rocky outcrops towards the south, which are visible from the Yumari rockhole.

At Yumari, there is a large rockhole which permanently holds water throughout all seasons. Near the rockhole, there are unusual rocks that look like granite pyramids. These rocks represent the fire that was lit by Tiakamarra. The rocks are called Dilira-ngarangu, which means 'the lighting of a large-towering fire.' There is also one rock that is different to the others and stands apart from the rest. This rock has impressions of two knees, these impressions represent where the lovers knelt together.

Yumari is where Katjarra's young father (her father's younger brother) passed away. He raised Katjarra when her biological father (Iltjiwara Tjungarrayi) passed away at a place called Kouun. Katjarra's young father was at Yumari when a revenge party came through. The revenge party were not searching for him, but he just got in the way and was speared. Revenge parties were known to be fierce, often killing anyone they came across on their journey.

Her father is buried on the sandhill near the rockholes at Yumari, where he was speared. Katjarra was in her teenage years when her father passed away. She remembers spending some of her earlier years living here with her family. She identifies with Yumari as her home.