Alston Formation

{{Short description|Geologial formation in England}}

{{Use dmy dates|date=September 2019}}

{{Use British English|date=March 2025}}

{{Infobox rockunit

| name = Alston Formation

| image =

| caption =

| type = Formation

| age = Viséan-Serpukhovian (Asbian-Pendleian)
~{{fossil range|339|320}}

| period = Serpukhovian

| prilithology = Limestone

| otherlithology =

| namedfor =

| namedby =

| region = England

| country = United Kingdom

| coordinates = {{coord|55.1|N|2.8|W|display=inline,title}}

| paleocoordinates = {{coord|2.7|S|2.9|E|display=inline}}

| unitof = Yoredale Group

| subunits =

| underlies =

| overlies =

| thickness =

| extent =

| area =

| map = {{Location map+ | England

| relief = 1

| width = 250

| float = center

| places =

{{Location map~ | England

| lat_deg = 55.1

| lon_deg = -2.8

| mark = Dark Green 004040 pog.svg

| marksize = 12

}}

}}

| map_caption =

}}

The Alston Formation is a geological formation in England. It preserves fossils dating back to the Viséan to Serpukhovian (Asbian, Brigantian and Pendleian in British stratigraphy) stages of the Carboniferous period.