1967 (age 10) Sulfur Mine to Agua de Chale (Nuevo Mazatlan) & Lagoon (future ‘Bahía Santa María’)

 

 

1971

 

1972 (age 14-15)

 

April 1973 with December ’73 Update Notes

 

1973 (age 16)

 

1978

 

1978
1979

 

1980

 

1982

 

1982

 

1988 (published in the Mexico West newsletter)

 

2004