Historical Marker Search

You searched for City|State: harrison, id

Showing results 1 to 1 of 1
historicalmarkerproject/markers/HM2ALC_submerged-valley_Harrison-ID.html
Glacial activity about 9000 to 12000 years ago created this lake out of what previously had been the valley of a river. The ice sheet occupied major valleys north of here. As the glacier receded, melt waters flooded across the outlet of this val…
PAGE 1 OF 1