My grandpa who is 85 started making this rock map of Scotland in 1992. He collected rocks during amateur geology trips over 30 years.
I'm a sucker for slow data collection and physical visualization.
[
add
]
[
|
|
...
]
My grandpa who is 85 started making this rock map of Scotland in 1992. He collected rocks during amateur geology trips over 30 years.
I'm a sucker for slow data collection and physical visualization.