This is a replacement Heroscape Glacier (6 Hex) from the Thaelenk Tundra expansion.
It's over 151mm in length and 130mm tall, so it's a little large for the average printing bed, but I have created both a slightly-scaled version that can be printed in 2 parts (Left and Right) or a full version that can be printed in 3 parts (Top, Bottom Left, Bottom Right) for beds under 120mm, e.g. the MP Select Mini.
It was created using a Rock Outcrop sourced from Heroscapers Index of 3D Printed Stl Files and reworked in Tinkercad.
The Rock Outcrop models I've uploaded from Battle for the Underdark can be used for the smaller glaciers in Thaelenk Tundra, too.