A Water Quality Baseline Inventory of Fort Clatsop National Memorial was initiated in September of 1995. Sites included in this inventory included the Lewis and Clark River, 2 permanent streams, 1 ephemeral stream, 2 ephemeral springs, 3 ephemeral ponds and 1 slough. All sites were sampled 3 times per month throughout the year, in the case of the ephemeral sites until they dried up in the summer and beginning again in the fall when the water returned.
Did You Know?
It took the Corps of Discovery 3 1/2 weeks to build Fort Clatsop. They started felling trees on December 9 and had it finished enough to move into on Christmas Day 1805. The pickets and gates were completed on New Years Day.