Friday, April 14

• Salmonopolis: An Ecological Story of the Little Spokane River

  9 a.m.-6 p.m., North Spokane Library, 44 E. Hawthorne Road

Saturday, April 22

• Grand Opening of the Doris Morrison Learning Center

  10 a.m.-2 p.m., 1330 S. Henry Road, Spokane Valley

Thursday, April 27

• Spring Boats Afloat Show

  11 a.m.-6 p.m., 901 Fairview Ave N, Seattle

Friday, April 28

• Spring Boats Afloat Show

  11 a.m.-6 p.m., 901 Fairview Ave N, Seattle

Saturday, April 29

• Spring Boats Afloat Show

  10 a.m.-6 p.m., 901 Fairview Ave N, Seattle

Sunday, April 30

• Spring Boats Afloat Show

  10 a.m.-5 p.m., 901 Fairview Ave N, Seattle

Saturday, May 6

• Saltese Uplands: A Decade-Long Conservation Story

  10 a.m.-noon, Otis Orchards Library, 22324 E. Wellesley Ave., Otis Orchards, Wash.

Saturday, June 10

• Stache Dash

  8 a.m.-1:59 p.m., Plantes Ferry Sports Complex, 12308 E. Upriver Dr., Spokane Valley