A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
Prismatic Abstract Background Design
Source GDJ
Crossing lines with a subtle emboss effect on a dark background.
Source Stefan Aleksić
A seamless pattern formed from miutopia mug remixes on a tablecloth.
Source Firkin
Derived from an image that was uploaded to Pixabay by Kaz
Source Firkin
Derived from an image that was uploaded to Pixabay by starchim01
Source Firkin
Heavy depth and shadows here, but might work well on some mobile apps.
Source Damian Rivas
The classic 45-degree diagonal line pattern, done right.
Source Jorick van Hees
Almost like little fish shells, or dragon skin.
Source Graphiste
This is the remix of "plant pattern 02".I changed the object color to white and the BG to purple.The image a seamless pattern derived from a weed which I can't identify.The original weed image is from here:jp.pinterest.com/pin/500744052301423641/
Source Yamachem
This is a semi-dark pattern, sort of linen-y.
Source Sagive SEO
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Remixed from a drawing in 'Line and form', Walter Crane, 1914.
Source Firkin